Works (193)

Updated: April 4th, 2024 12:11

2024 journal article

Hybrid Laser Cavity Design for Improved Photon Lifetime and Performance

IEEE PHOTONICS TECHNOLOGY LETTERS, 36(7), 516–519.

By: Y. Mehta n, K. Chien*, L. Lei n, K. Gundogdu n, C. Chang* & F. So n

author keywords: Silver; Mirrors; Reflectivity; Perovskites; Lasers; Optical feedback; Optical films; Metal halide perovskites; amplified spontaneous emission (ASE); cavity photon lifetime
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: March 25, 2024

2024 journal article

Modeling the co-assembly of binary nanoparticles

NANOTECHNOLOGY, 35(3).

author keywords: self-assembly; colloids; nanoparticles; nanolithography; nanostructures
Sources: Web Of Science, NC State University Libraries
Added: November 20, 2023

2023 journal article

High-Efficiency Linearly Polarized Organic Light-Emitting Diodes

ACS PHOTONICS, 10(9), 3342–3349.

By: Q. Dong n, L. Zhu n, S. Yin n, L. Lei n, K. Gundogdu n & F. So n

author keywords: organic light-emitting diodes; polarized emission; diffractive grating; Bragg diffraction
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: October 16, 2023

2023 article

Metal-Halide Perovskite Lasers: Cavity Formation and Emission Characteristics

Moon, J., Mehta, Y., Gundogdu, K., So, F., & Gu, Q. (2023, July 25). ADVANCED MATERIALS, Vol. 7.

By: J. Moon*, Y. Mehta n, K. Gundogdu n, F. So n & Q. Gu n

author keywords: emission mechanisms in perovskites; metal-halide perovskites; patterning of perovskite cavities; perovskite lasers
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 7, 2023

2022 journal article

Cavity Engineering of Perovskite Distributed Feedback Lasers

ACS Photonics, 9(9), 3124–3133.

By: Q. Dong n, X. Fu n, D. Seyitliyev n, K. Darabi n, J. Mendes n, L. Lei n, Y. Chen*, C. Chang* ...

author keywords: perovskite lasers; distributed feedback lasers; cavity fabrication; cavity engineering
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: August 19, 2022

2022 article

Consensus statement: Standardized reporting of power-producing luminescent solar concentrator performance

Yang, C., Atwater, H. A., Baldo, M. A., Baran, D., Barile, C. J., Barr, M. C., … Lunt, R. R. (2022, January 19). JOULE, Vol. 6, pp. 8–15.

Sources: Web Of Science, NC State University Libraries
Added: February 7, 2022

2022 article

Curved Mirror Arrays for Light Extraction in Top-Emitting Organic Light-Emitting Diodes

Amoah, S., Fu, X., Yin, S., Dong, Q., Dong, C., & So, F. (2022, February 15). ACS APPLIED MATERIALS & INTERFACES, Vol. 2, pp. 9377–9385.

By: S. Amoah n, X. Fu n, S. Yin n, Q. Dong n, C. Dong n & F. So n

author keywords: OLED; top-emitting; light extraction; embedded scattering layer; waveguide mode; SPP mode
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: March 7, 2022

2022 journal article

Enhanced Surface Passivation of Lead Sulfide Quantum Dots for Short-Wavelength Photodetectors

CHEMISTRY OF MATERIALS, 34(12), 5433–5442.

By: S. Yin n, C. Ho n, S. Ding n, X. Fu n, L. Zhu n, J. Gullett n, C. Dong n, F. So n

Sources: Web Of Science, NC State University Libraries
Added: July 11, 2022

2022 article

Importance of Electric-Field-Independent Mobilities in Thick-Film Organic Solar Cells

Ho, C. H. Y., Pei, Y., Qin, Y., Zhang, C., Peng, Z., Angunawela, I., … So, F. (2022, October 11). ACS APPLIED MATERIALS & INTERFACES, Vol. 10.

By: C. Ho n, Y. Pei n, Y. Qin n, C. Zhang*, Z. Peng n, I. Angunawela n, A. Jones*, H. Yin* ...

Contributors: C. Ho n

author keywords: organic photovoltaic; fill factor; thick film; mobility; field dependence; electric field
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: October 23, 2022

2022 article

Insights into the Local Bulk-Heterojunction Packing Interactions and Donor-Acceptor Energy Level Offsets in Scalable Photovoltaic Polymers

Jones, A. L., Ho, C. H. Y., Schneider, S. A., Zhang, J., Pei, Y., Wang, J., … Reynolds, J. R. (2022, July 27). CHEMISTRY OF MATERIALS, Vol. 7.

By: A. Jones, C. Ho*, S. Schneider, J. Zhang, Y. Pei*, J. Wang, X. Zhan, S. Marder ...

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: December 5, 2022

2022 journal article

Room-temperature superfluorescence in hybrid perovskites and its origins

NATURE PHOTONICS, 16(4), 324-+.

Sources: Web Of Science, NC State University Libraries, ORCID
Added: April 14, 2022

2021 journal article

Balancing crop production and energy harvesting in organic solar-powered greenhouses

CELL REPORTS PHYSICAL SCIENCE, 2(3).

By: E. Ravishankar n, M. Charles n, Y. Xiong n, R. Henry n, J. Swift n, J. Rech*, J. Calero n, S. Cho n ...

Sources: Web Of Science, NC State University Libraries, ORCID
Added: June 28, 2021

2021 article

Band Edge Control of Quasi-2D Metal Halide Perovskites for Blue Light-Emitting Diodes with Enhanced Performance

Worku, M., Ben-Akacha, A., Sridhar, S., Frick, J. R., Yin, S., He, Q., … Ma, B. (2021, August 8). ADVANCED FUNCTIONAL MATERIALS, Vol. 8.

By: M. Worku*, A. Ben-Akacha*, S. Sridhar n, J. Frick n, S. Yin n, Q. He*, A. Robb*, M. Chaaban* ...

author keywords: band edge control; blue perovskite LEDs; charge balance; quasi-2D perovskites
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 16, 2021

2021 journal article

Directional Polarized Light Emission from Thin‐Film Light‐Emitting Diodes

Advanced Materials, 33(9), 2006801.

By: X. Fu n, Y. Mehta n, Y. Chen*, L. Lei n, L. Zhu n, N. Barange n, Q. Dong n, S. Yin n ...

author keywords: beam shaping; organic light-emitting diodes; perovskite light-emitting diodes; polarized light; waveguides
TL;DR: By selectively diffracting the transverse electric (TE) waveguide mode while suppressing other optical modes in a nanostructured LED, the authors demonstrate highly directional light emission from a full-area organic LED with a small divergence angle less than 3° and a TE to transverse magnetic (TM) polarization extinction ratio of 13.6%. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, Crossref
Added: February 15, 2021

2021 article

Emitting organically

Pile, D. F. P., & So, F. (2021, September). NATURE PHOTONICS, Vol. 15, pp. 635–636.

By: D. Pile & F. So

Sources: Web Of Science, NC State University Libraries
Added: September 7, 2021

2021 journal article

High-temperature superfluorescence in methyl ammonium lead iodide

Nature Photonics, 15(9), 676–680.

Sources: Web Of Science, NC State University Libraries, Crossref, ORCID
Added: June 22, 2021

2021 journal article

Interconnecting layers for tandem organic solar cells

MATERIALS TODAY ENERGY, 21.

By: C. Ho, J. Kothari, X. Fu & F. So

author keywords: Organic solar cell; Tandem structure; Interconnecting layers
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: October 18, 2021

2021 journal article

Light extraction in tandem organic light emitting diodes

APPLIED PHYSICS LETTERS, 119(6).

By: X. Fu n, S. Yin n, Y. Chen*, L. Zhu n, Q. Dong n, C. Chang*, F. So n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 12, 2021

2021 review

Metal Halide Perovskites for Laser Applications

[Review of ]. ADVANCED FUNCTIONAL MATERIALS, 31(16).

By: L. Lei n, Q. Dong n, K. Gundogdu n & F. So n

author keywords: amplified spontaneous emission; electron– phonon coupling; halide perovskites; lasers; quasi‐ 2D perovskites
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: March 8, 2021

2020 journal article

Critical Role of Polymer Aggregation and Miscibility in Nonfullerene-Based Organic Photovoltaics

ADVANCED ENERGY MATERIALS, 10(8).

By: X. Yi n, Z. Peng n, B. Xu*, D. Seyitliyev n, C. Ho n, E. Danilov n, T. Kim n, J. Reynolds* ...

author keywords: charge generation; charge transport; morphology; nonfullerene acceptors; polymer aggregation
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: February 10, 2020

2020 journal article

Direct Acoustic Imaging Using a Piezoelectric Organic Light-Emitting Diode

ACS APPLIED MATERIALS & INTERFACES, 12(32), 36409–36416.

By: H. Yu n, J. Kim n, H. Kim n, N. Barange n, X. Jiang n & F. So n

author keywords: ultrasonic sensor; piezoelectric; organic light emitting diode; acousto optic conversion; ultrasound tomography
TL;DR: A novel ultrasonic imaging device that can optically display an acoustic signal on the surface of a piezoelectric transducer that is operated without a need for conventional signal processing is reported. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: September 14, 2020

2020 journal article

Effects of polymer crystallinity on non-fullerene acceptor based organic solar cell photostability

JOURNAL OF MATERIALS CHEMISTRY C, 8(45), 16092–16099.

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: December 21, 2020

2020 journal article

Efficient Double- and Triple-Junction Nonfullerene Organic Photovoltaics and Design Guidelines for Optimal Cell Performance

ACS ENERGY LETTERS, 5(12), 3692–3701.

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: January 11, 2021

2020 journal article

Efficient Energy Funneling in Quasi-2D Perovskites: From Light Emission to Lasing

ADVANCED MATERIALS, 32(16).

By: L. Lei n, D. Seyitliyev n, S. Stuard n, J. Mendes n, Q. Dong n, X. Fu n, Y. Chen n, S. He n ...

author keywords: amplified spontaneous emission; distributed-feedback lasers; energy funneling; light-emitting diodes; quasi-2D perovskites
TL;DR: The results show that it is important to control the morphology of the quasi-2D films to achieve efficient energy transfer, which is a critical requirement for light-emitting devices. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: March 16, 2020

2020 journal article

High-Performance Tandem Organic Solar Cells Using HSolar as the Interconnecting Layer

ADVANCED ENERGY MATERIALS, 10(25).

By: C. Ho n, T. Kim n, Y. Xiong n, Y. Firdaus*, X. Yi n, Q. Dong n, J. Rech*, A. Gadisa n ...

author keywords: interconnecting layers; organic photovoltaics; tandem solar cells
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: May 26, 2020

2020 journal article

Mode Dispersion in Photonic Crystal Organic Light-Emitting Diodes

ACS APPLIED ELECTRONIC MATERIALS, 2(6), 1759–1767.

By: X. Fu n, C. Peng n, M. Samal n, N. Barange n, Y. Chen*, D. Shin n, Y. Mehta n, A. Rozelle n, C. Chang*, F. So n

author keywords: OLED; photonic crystal; optical modes; photonic band gap; light extraction
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: July 20, 2020

2020 journal article

Multi-mode Organic Light-Emitting Diode to Suppress the Viewing Angle Dependence

ACS APPLIED MATERIALS & INTERFACES, 12(28), 31667–31676.

By: C. Dong n, X. Fu n, L. Cao*, S. Amoah n, K. Gundogdu n, J. Li*, F. So n

author keywords: white OLED; top-emitting OLED; cavity effect; multiple cavity modes; angular color shift
TL;DR: A multi-mode OLED structure having dual-dielectric spacer layers, which completely eliminates the intrinsic cavity effect caused by the top and bottom boundaries respectively and provides freedom for the organic layer thickness. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 10, 2020

2020 review

Operational stability of perovskite light emitting diodes

[Review of ]. JOURNAL OF PHYSICS-MATERIALS, 3(1).

By: Q. Dong n, L. Lei n, J. Mendes n & F. So n

author keywords: perovskite light emitting diodes; stability; degradation mechanisms; ion migration
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: September 7, 2020

2020 journal article

Recovering cavity effects in corrugated organic light emitting diodes

OPTICS EXPRESS, 28(21), 32214–32225.

By: X. Fu*, Y. Chen*, D. Shin*, Y. Mehta*, I. Chen*, N. Barange*, L. Zhu*, S. Amoah*, C. Chang*, F. So*

TL;DR: It is found that the cavity effects can be partially recovered using a low index Teflon layer inserted between the ITO anode and the substrate due to the enhancement of the reflectance of the corrugated electrodes. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: November 16, 2020

2020 journal article

Understanding the Role of Ion Migration in the Operation of Perovskite Light-Emitting Diodes by Transient Measurements

ACS APPLIED MATERIALS & INTERFACES, 12(43), 48845–48853.

By: Q. Dong n, J. Mendes n, L. Lei n, D. Seyitliyev n, L. Zhu n, S. He n, K. Gundogdu n, F. So n

author keywords: ion migration; perovskite light-emitting diodes; transient electroluminescence; transient current; device physics; charge injection
TL;DR: A combined analysis of both charge injection and recombination dynamics shows that the slow response of the efficiency is attributed to enhanced charge injection facilitated by ion migration, which leads to an increased carrier density favoring bimolecular radiative recombination. (via Semantic Scholar)
UN Sustainable Development Goal Categories
10. Reduced Inequalities (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: December 21, 2020

2019 journal article

Acceptor Gradient Polymer Donors for Non-Fullerene Organic Solar Cells

CHEMISTRY OF MATERIALS, 31(23), 9729–9741.

By: A. Jones*, Z. Zheng*, P. Riley n, I. Pelse*, J. Zhang*, M. Abdelsamie*, M. Toney*, S. Marder* ...

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: December 30, 2019

2019 journal article

Defect Passivation by Fullerene Derivative in Perovskite Solar Cells with Aluminum-Doped Zinc Oxide as Electron Transporting Layer

CHEMISTRY OF MATERIALS, 31(17), 6833–6840.

By: Q. Dong n, C. Ho n, H. Yu n, A. Salehi n & F. So n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: October 7, 2019

2019 journal article

Eliminate angular color shift in top-emitting OLEDs through cavity design

JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY, 27(8), 469–479.

By: C. Dong n, X. Fu n, S. Amoah n, A. Rozelle n, D. Shin n, A. Salehi n, J. Mendes n, F. So n

author keywords: dielectric spacer; micro-cavity; spectrum stability; top-emitting OLED (TEOLED); viewing angle independent
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 26, 2019

2019 journal article

Long-Wavelength Lead Sulfide Quantum Dots Sensing up to 2600 nm for Short-Wavelength Infrared Photodetectors

ACS APPLIED MATERIALS & INTERFACES, 11(47), 44451–44457.

By: C. Dong n, S. Liu n, N. Barange n, J. Lee n, T. Pardue n, X. Yi n, S. Yin n, F. So n

author keywords: lead sulfide quantum dots; multiple injections; sensing up to 2600 nm; monodispersity; infrared photodetectors
TL;DR: This work reports a successful synthesis of very large mono-dispersed PbS NPs having a diameter up to 16 nm by multiple injections and to demonstrate the applications of such large QDs, broadband heterojunction photodetectors are fabricated with the large P bS QDs of an absorption peak at 2100 nm. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: December 30, 2019

2019 journal article

Panchromatic All-Polymer Photodetector with Tunable Polarization Sensitivity

ADVANCED OPTICAL MATERIALS, 7(4).

By: P. Sen n, R. Yang n, J. Rech*, Y. Feng*, C. Ho n, J. Huang*, F. So n, R. Kline* ...

author keywords: all-polymer; panchromatic; photovoltaic; polarimeter; polarized-light
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: March 11, 2019

2019 review

Progress in air-processed perovskite solar cells: from crystallization to photovoltaic performance

[Review of ]. MATERIALS HORIZONS, 6(8), 1611–1624.

By: Y. Cheng*, F. So n & S. Tsang*

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: October 7, 2019

2019 journal article

Realization of high-efficiency fluorescent organic light-emitting diodes with low driving voltage

Nature Communications, 10(1).

By: A. Salehi n, C. Dong n, D. Shin n, L. Zhu n, C. Papa n, A. Thy Bui n, F. Castellano n, F. So n

TL;DR: It is demonstrated organic molecules with a large singlet-triplet splitting can achieve efficient EL at voltages below the bandgap voltage, and a blue fluorescent organic light-emitting diode having a power efficiency higher than some of the best thermally activated delayed fluorescent and phosphorescent blue organic Lightemitting diodes is demonstrated. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: June 17, 2019

2019 review

Recent Advances in OLED Optical Design

[Review of ]. ADVANCED FUNCTIONAL MATERIALS, 29(15).

By: A. Salehi n, X. Fu n, D. Shin n & F. So n

author keywords: optics; organic light-emitting diodes; outcoupling; light extraction; refractive indices
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: June 4, 2019

2019 journal article

The Critical Impact of Material and Process Compatibility on the Active Layer Morphology and Performance of Organic Ternary Solar Cells

ADVANCED ENERGY MATERIALS, 9(2).

By: J. Kim n, C. Schaefer*, T. Ma*, J. Zhao*, J. Turner n, M. Ghasemi n, I. Constantinou n, F. So n ...

author keywords: compatibility; kinetic morphology development; relative standard deviation of the fullerene distribution; solubility; ternary solar cells
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID
Added: February 18, 2019

2018 journal article

Donor Conjugated Polymers with Polar Side Chain Groups: The Role of Dielectric Constant and Energetic Disorder on Photovoltaic Performance

Advanced Functional Materials, 28(46), 1803418.

By: B. Xu*, X. Yi n, T. Huang*, Z. Zheng*, J. Zhang*, A. Salehi n, V. Coropceanu*, C. Ho n ...

author keywords: conjugated polymers; energetic disorder; organic electronics; organic solar cells; photovoltaic devices
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: November 26, 2018

2018 journal article

Enhanced piezoelectricity of thin film hafnia-zirconia (HZO) by inorganic flexible substrates

Applied Physics Letters, 113(2), 022905.

UN Sustainable Development Goal Categories
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2018 journal article

Every Atom Counts: Elucidating the Fundamental Impact of Structural Change in Conjugated Polymers for Organic Photovoltaics

CHEMISTRY OF MATERIALS, 30(9), 2995–3009.

By: C. Lo*, B. Gautam n, P. Selter*, Z. Zheng*, S. Oosterhout*, I. Constantinou n, R. Knitsch*, R. Wolfe* ...

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2018 journal article

Flexoelectricity in a metal/ferroelectric/semiconductor heterostructure

AIP ADVANCES, 8(6).

By: S. Huang n, H. Yau*, H. Yu n, L. Qi n, F. So n, J. Dai*, X. Jiang n

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2018 journal article

Impact of Nonfullerene Molecular Architecture on Charge Generation, Transport, and Morphology in PTB7-Th-Based Organic Solar Cells

Advanced Functional Materials, 28(32), 1802702.

By: X. Yi n, B. Gautam*, I. Constantinou n, Y. Cheng*, Z. Peng n, E. Klump n, X. Ba*, C. Ho n ...

author keywords: charge generation; charge transport; molecular architecture; morphology; nonfullerene acceptors
UN Sustainable Development Goal Categories
Sources: Crossref, NC State University Libraries
Added: December 5, 2019

2018 journal article

Increased Exciton Delocalization of Polymer upon Blending with Fullerene

Advanced Materials, 30(30), 1801392.

By: B. Gautam n, E. Klump n, X. Yi n, I. Constantinou n, N. Shewmon n, A. Salehi n, C. Lo*, Z. Zheng* ...

author keywords: charge transfer states; electroabsorption; exciton delocalization; Frenkel exciton; polarizability
TL;DR: It is found that excited-state polarizability of polymer excitons in the blends is a strong function of blend nanomorphology and is a key parameter for efficient free carrier generation and should be considered in the design and development of high-performance polymer solar cells. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Crossref, NC State University Libraries
Added: December 5, 2019

2018 journal article

Langmuir-Blodgett Thin Films of Diketopyrrolopyrrole-Based Amphiphiles

ACS APPLIED MATERIALS & INTERFACES, 10(14), 11995–12004.

author keywords: Langmuir-Blodgett; monolayer; amphiphilic molecules; diketopyrrolopyrrole; layer-by-layer deposition; organic field-effect transistor; donor-acceptor-donor molecules
TL;DR: Organic field-effect transistors and organic photovoltaics devices with active layers consisting of the amphiphilic conjugated D-A-D-type molecules were constructed to demonstrate that the LB technique is an effective layer-by-layer deposition approach to fabricate self-assembled, ordered thin films. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2018 journal article

Manipulating Refractive Index in Organic Light-Emitting Diodes

ACS APPLIED MATERIALS & INTERFACES, 10(11), 9595–9601.

By: A. Salehi n, Y. Chen n, X. Fu*, C. Peng* & F. So n

author keywords: organic light-emitting diodes; oblique angle deposition; spectroscopic ellipsometry; refractive index; electron transport layer
TL;DR: Using OAD, the refractive index of tris(8-hydroxyquinoline)aluminum (Alq3) can be tuned from 1.75 to 1.45, and the resulting phosphorescent OLED shows nearly 30% increase in light extraction efficiency. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2018 journal article

Randomly Distributed Conjugated Polymer Repeat Units for High-Efficiency Photovoltaic Materials with Enhanced Solubility and Processability

ACS APPLIED MATERIALS & INTERFACES, 10(51), 44583–44588.

By: B. Xu*, I. Pelse*, S. Agarkar*, S. Ito*, J. Zhang*, X. Yi n, Y. Chujo*, S. Marder* ...

author keywords: conjugated polymers; organic photovoltaics; random terpolymers; bulk heterojunction solar cells; organic electronics
TL;DR: It is shown that the random ter polymer approach is successful in improving processability while maintaining device performance, and solar cells based on random terpolymer-PC71BM blends exhibited average power conversion efficiencies of over 9.5% when processed with preheated substrates, exceeding those from PffBT4T-2OD. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: January 21, 2019

2018 journal article

Semi-transparent vertical organic light-emitting transistors

Organic Electronics, 55, 126–132.

By: H. Yu n, S. Ho n, N. Barange n, R. Larrabee n & F. So n

author keywords: Vertical field effect transistor; Light-emitting transistor; Light extraction; Transparent electronic; Porous electrode
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2018 journal article

Side-Chain Sequence Enabled Regioisomeric Acceptors for Conjugated Polymers

MACROMOLECULES, 51(21), 8486–8492.

By: X. Luo*, D. Tran*, N. Kadlubowski*, C. Ho n, P. Riley n, F. So n, J. Mei*

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID
Added: December 10, 2018

2018 journal article

Sub-Band Gap Turn-On Near-Infrared-to-Visible Up-Conversion Device Enabled by an Organic?Inorganic Hybrid Perovskite Photovoltaic Absorber

ACS APPLIED MATERIALS & INTERFACES, 10(18), 15920–15925.

By: H. Yu n, Y. Cheng*, M. Li*, S. Tsang* & F. So n

author keywords: organo-halide perovskite; infrared imaging; up-conversion; organic light-emitting diode; photovoltaic
TL;DR: A low-voltage near-IR (NIR)-to-visible up-conversion device using formamidinium lead iodide as a NIR absorber integrated with a phosphorescent OLED that shows a sub-band gap turn-on of the OLED under NIR illumination is reported. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2018 journal article

Vertical Organic-Inorganic Hybrid Perovskite Schottky Junction Transistors

Advanced Electronic Materials, 4(5), 1800039.

author keywords: organic-inorganic hybrid perovskite; patterned electrodes; Schottky junctions; vertical transistors
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2018 book

World Scientific handbook of organic optoelectronic devices

Singapore ; Hackensack, NJ: World Scientific Publishing Company.

Franky So

Ed(s): F. So, J. Huang, Y. Yongbo & B. Thompson

Source: NC State University Libraries
Added: February 5, 2022

2017 journal article

18% High-Efficiency Air-Processed Perovskite Solar Cells Made in a Humid Atmosphere of 70% RH

Solar RRL, 1(9), 1700097.

By: Y. Cheng*, X. Xu*, Y. Xie*, H. Li*, J. Qing*, C. Ma*, C. Lee*, F. So n, S. Tsang*

author keywords: air-processed perovskite solar cells; fast crystallization; moisture; oxygen; wetting capability
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2017 journal article

18% high-efficiency air-processed perovskite solar cells made in a humid atmosphere of 70% RH

Solar RRL, 1(9).

By: Y. Cheng*, X. Xu*, Y. Xie*, H. Li*, J. Qing*, C. Ma*, C. Lee*, F. So n, S. Tsang*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2017 journal article

Comparing non-fullerene acceptors with fullerene in polymer solar cells: a case study with FTAZ and PyCNTAZ

JOURNAL OF MATERIALS CHEMISTRY A, 5(10), 4886–4893.

By: N. Bauer*, Q. Zhang*, J. Zhao*, L. Ye n, J. Kim n, I. Constantinou n, L. Yan*, F. So n ...

Contributors: N. Bauer*, Q. Zhang*, J. Zhao*, L. Ye n, J. Kim n, I. Constantinou n, L. Yan*, F. So n ...

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2017 journal article

Effect of Polymer-Fullerene Interaction on the Dielectric Properties of the Blend

Advanced Energy Materials, 7(13), 1601947.

By: I. Constantinou n, X. Yi n, N. Shewmon n, E. Klump*, C. Peng*, S. Garakyaraghi n, C. Lo*, J. Reynolds*, F. Castellano n, F. So n

Contributors: I. Constantinou n, X. Yi n, N. Shewmon n, E. Klump*, C. Peng*, S. Garakyaraghi n, C. Lo*, J. Reynolds*, F. Castellano n, F. So n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Crossref, NC State University Libraries, ORCID, NC State University Libraries
Added: August 6, 2018

2017 journal article

Flexible Inorganic Ferroelectric Thin Films for Nonvolatile Memory Devices

Advanced Functional Materials, 27(21), 1700461.

By: H. Yu n, C. Chung n, N. Shewmon n, S. Ho n, J. Carpenter n, R. Larrabee n, T. Sun n, J. Jones n ...

author keywords: ferroelectric materials; flexible electronics; hafnia films; low-temperature processes; nonvolatile memory
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2017 journal article

Fluorinated Thiophene Units Improve Photovoltaic Device Performance of Donor–Acceptor Copolymers

Chemistry of Materials, 29(14), 5990–6002.

By: Q. Zhang*, L. Yan*, X. Jiao n, Z. Peng n, S. Liu*, J. Rech*, E. Klump n, H. Ade, F. So n, W. You*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Crossref, NC State University Libraries, Web Of Science
Added: August 6, 2018

2017 journal article

Highly Efficient Organic Light-Emitting Diode Using A Low Refractive Index Electron Transport Layer

ADVANCED OPTICAL MATERIALS, 5(11).

By: A. Salehi n, S. Ho*, Y. Chen n, C. Peng*, H. Yersin* & F. So n

author keywords: electron transport layers; low refractive indexes; organic light emitting diodes; thermally activated delayed florescence
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

In Search of Deeper Blues: Trans-N-Heterocyclic Carbene Platinum Phenylacetylide as a Dopant for Phosphorescent OLEDs

ACS APPLIED MATERIALS & INTERFACES, 9(47), 41111–41114.

By: J. Bullock*, A. Salehi*, C. Zeman*, K. Abboud*, F. So* & K. Schanze*

author keywords: OLED; platinum carbene; phosphorescence; electrophosphorescence; blue emission
TL;DR: To the best of the authors' knowledge, this is the first example of a platinum(II) acetylide bearing NHC ligands to be incorporated into an OLED. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Organic molecular light-emitting materials and devices

Introduction to Organic Electronic and Optoelectronic Materials and Devices, 2nd Edition, 363–385.

By: F. So & J. Shi

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Probing the Emission Zone Length in Organic Light Emitting Diodes via Photoluminescence and Electroluminescence Degradation Analysis

ACS APPLIED MATERIALS & INTERFACES, 9(47), 41421–41427.

By: C. Peng*, A. Salehi*, Y. Chen*, M. Danz*, G. Liaptsis* & F. So*

author keywords: OLED; OLED operational stability; photoluminescence; emission zone; mixed host
TL;DR: A modeling methodology is developed to quantitatively determine the length of the emission zone in organic light emitting diodes and correlate that with the degradation mechanism, which shows that the emission zones of dopant 1 devices is narrower than the 4CzIPN device, leading to faster degradation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Strong polymer molecular weight-dependent material interactions: impact on the formation of the polymer/fullerene bulk heterojunction morphology

Journal of Materials Chemistry A, 5(25), 13176–13188.

By: J. Kim n, A. Gadisa n, C. Schaefer, H. Yao*, B. Gautam n, N. Balar n, M. Ghasemi n, I. Constantinou n ...

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2017 journal article

Transparent indium-tin oxide/indium-gallium-zinc oxide Schottky diodes formed by gradient oxygen doping

APPLIED PHYSICS LETTERS, 111(21).

By: S. Ho n, H. Yu n & F. So n

Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Ultraviolet-ozone surface modification for non-wetting hole transport materials based inverted planar perovskite solar cells with efficiency exceeding 18%

JOURNAL OF POWER SOURCES, 360, 157–165.

By: X. Xu*, C. Ma*, Y. Cheng*, Y. Xie*, X. Yi n, B. Gautam n, S. Chen*, H. Li* ...

author keywords: Inverted planar perovskite solar cell; Non-wetting hole transport material; Ultraviolet-ozone modification; Solution process
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Using Ultralow Dosages of Electron Acceptor to Reveal the Early Stage Donor-Acceptor Electronic Interactions in Bulk Heterojunction Blends

ADVANCED ENERGY MATERIALS, 7(12).

By: C. Ho*, S. Cheung*, H. Li*, K. Chiu*, Y. Cheng*, H. Yin*, M. Chan*, F. So n ...

author keywords: bulk heterojunction; carrier transport; photothermal deflection spectroscopy; photovoltaics; traps
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2017 journal article

Utilizing Forster resonance energy transfer to extend spectral response of PCDTBT:PCBM solar cells

ORGANIC ELECTRONICS, 42, 87–92.

By: E. Klump*, I. Constantinou n, T. Lai* & F. So n

author keywords: Organic solar cells; FRET; Ternary bulk heterojunction; PCDTBT
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Charge photogeneration in organic photovoltaics: Role of hot versus cold charge-transfer excitons

Advanced Energy Materials, 6(1).

By: B. Gautam n, R. Younts n, W. Li*, L. Yan*, E. Danilov n, E. Klump n, I. Constantinou n, F. So n ...

Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2016 journal article

Corrugated Organic Light Emitting Diodes Using Low T-g Electron Transporting Materials

ACS APPLIED MATERIALS & INTERFACES, 8(25), 16192–16199.

By: C. Peng n, S. Liu n, X. Fu n, Z. Pan, Y. Chen n, F. So n, K. Schanze

author keywords: OLED; light extraction; corrugation; low glass transition temperature material
TL;DR: The corrugated OLED has a greatly improved operational stability and the LT90 lifetime of a device operated at 1000 cd/m(2) is improved greater than 100-fold in the corrugation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Degradation study of organic light-emitting diodes with solution-processed small molecule phosphorescent emitting layers

JOURNAL OF MATERIALS CHEMISTRY C, 4(37), 8696–8703.

By: S. Liu n, C. Peng*, A. Cruz n, Y. Chen n & F. So n

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Efficiency Roll-Off in Blue Emitting Phosphorescent Organic Light Emitting Diodes with Carbazole Host Materials

ADVANCED FUNCTIONAL MATERIALS, 26(9), 1463–1469.

By: C. Xiang*, X. Fu*, W. Wei, R. Liu, Y. Zhang, V. Balema, B. Nelson, F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Evidence of Molecular Structure Dependent Charge Transfer between Isoindigo-Based Polymers and Fullerene

CHEMISTRY OF MATERIALS, 28(7), 2433–2440.

By: T. Lai, I. Constantinou, C. Grand*, E. Klump, S. Baek, H. Hsu, S. Tsang*, K. Schanze ...

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Formation of Perovskite Heterostructures by Ion Exchange

ACS APPLIED MATERIALS & INTERFACES, 8(48), 33273–33279.

By: N. Shewmon n, H. Yu n, I. Constantinou n, E. Klump* & F. So n

author keywords: hybrid perovskite; single crystal; solution processing; heterojunction; ion exchange
TL;DR: The formation of the MAPbI3 layer is found to be dominated by the diffusion of halide ions, leading to a shift in the photoluminescence and absorption spectra, and carrier transport measurements show that the converted layer retains the high carrier mobility typical of single-crystal perovskite materials. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

High-gain infrared-to-visible upconversion light-emitting phototransistors

NATURE PHOTONICS, 10(2), 129-+.

By: H. Yu n, D. Kim*, J. Lee*, S. Baek*, J. Lee n, R. Singh*, F. So n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Inorganic UV-Visible-SWIR Broadband Photodetector Based on Monodisperse PbS Nanocrystals

SMALL, 12(10), 1328–1333.

By: J. Lee n, D. Kim*, S. Baek n, H. Yu n & F. So n

TL;DR: Solution-processed inorganic UV-visible short-wave-infrared photodetectors with light sensitivity from 350 nm to 2000 nm are fabricated using highly monodispersed large PbS NCs, showing detectivity values over 1 × 10 Jones. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Interface Effect on Efficiency Loss in Organic Light Emitting Diodes with Solution Processed Emitting Layers

ADVANCED MATERIALS INTERFACES, 3(19).

By: S. Ho*, Y. Chen n, S. Liu n, C. Peng*, D. Zhao* & F. So n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Novel Patterning Method for Silver Nanowire Electrodes for Thermal-Evaporated Organic Light Emitting Diodes

ACS Applied Materials & Interfaces, 8(14), 9268–9274.

By: S. Liu n, S. Ho* & F. So n

author keywords: silver nanowires; patterning; organic light emitting diodes; surface treatments; polymer embedding; transparent electrode; light scattering
TL;DR: By controlling the surface wetting properties of a polydimethylsiloxane (PDMS) release template, a multilayer patterning and transferring process can be realized, resulting in a fine-patterned, smooth, and uniform AgNWs mesh/poly(3,4-ethylenedioxythiophene) polystyrenesulfonate ( PEDOT PSS) composite electrode. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2016 journal article

Perovskite Solar Cells on Corrugated Substrates with Enhanced Efficiency

Small, 12(46), 6346–6352.

By: Y. Luo*, S. Liu n, N. Barange n, L. Wang* & F. So n

TL;DR: Corrugated structure is found to accelerate the chemical reaction between the sequentially deposited lead iodide and methyl ammonium iodide layers to form stoichiometric perovskite films, resulting in a significantly higher short circuit current (JSC) observed in the corrugated devices. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2016 journal article

Perovskite solar cells on corrugated substrates with enhanced efficiency

Small (Weinheim An Der Bergstrasse, Germany), 12(46), 6346–6352.

By: Y. Luo*, S. Liu n, N. Barange n, L. Wang* & F. So n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2016 journal article

Photodegradation of Metal Oxide Interlayers in Polymer Solar Cells

ADVANCED MATERIALS INTERFACES, 3(23).

By: I. Constantinou n, N. Shewmon n, C. Lo*, J. Deininger*, J. Reynolds* & F. So n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Photodetectors: Inorganic UV-Visible-SWIR Broadband Photodetector Based on Monodisperse PbS Nanocrystals (Small 10/2016)

Small, 12(10), 1246–1246.

By: J. Lee n, D. Kim*, S. Baek n, H. Yu n & F. So n

TL;DR: These NCs are used to fabricate multi-spectral photodetectors and high detectivity values in the UV-Visible-SWIR (short-wave-IR) wavelength range from 350 nm to 2000 nm are demonstrated. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2016 journal article

Solution-processed copper oxide interlayers for broadband PbS quantum-dot photodiodes

JOURNAL OF MATERIALS CHEMISTRY C, 4(47), 11205–11211.

By: H. Yu n, S. Liu n, S. Baek n, D. Kim*, C. Dong n & F. So n

Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Structure-Property Relationships Directing Transport and Charge Separation in Isoindigo Polymers

MACROMOLECULES, 49(11), 4008–4022.

By: C. Grand*, S. Baek, T. Lai, N. Deb*, W. Zajaczkowski*, R. Stalder, K. Muellen, W. Pisula* ...

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Vertical Organic Field-Effect Transistors for Integrated Optoelectronic Applications

ACS APPLIED MATERIALS & INTERFACES, 8(16), 10430–10435.

By: H. Yu n, Z. Dong*, J. Guo*, D. Kim* & F. So n

author keywords: vertical field-effect transistor; organic light-emitting transistor; Schottky diode; on/off ratio; current saturation
TL;DR: A VOFET with an on/off ratio up to 10(5) as well as output current saturation is reported by fabricating a transparent gate capacitor consisting of a perforated indium tin oxide (ITO) source electrode, HfO2 gate dielectric, and ITO gate electrode. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Bridging the Efficiency Gap: Fully Bridged Dinuclear Cu(I)-Complexes for Singlet Harvesting in High-Efficiency OLEDs

Advanced Materials, 27(15), 2538–2543.

By: D. Volz*, Y. Chen*, M. Wallesch*, R. Liu*, C. Fléchon*, D. Zink*, J. Friedrichs*, H. Flügge* ...

author keywords: copper complexes; organic light-emitting diodes; singlet harvesting; solution-processing; thermally activated delayed fluorescence
MeSH headings : Copper / chemistry; Electrical Equipment and Supplies; Models, Molecular; Molecular Conformation; Organometallic Compounds / chemistry; Temperature
TL;DR: It is demonstrated that using a solution-processed, fully bridged dinuclear Cu(I)-complex can yield very high efficiencies, and an optimized device gives a maximum external quantum efficiency. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2015 journal article

Charge Photogeneration in Organic Photovoltaics: Role of Hot versus Cold Charge-Transfer Excitons

Advanced Energy Materials, 6(1), 1301032.

By: B. Gautam n, R. Younts n, W. Li*, L. Yan*, E. Danilov n, E. Klump n, I. Constantinou n, F. So n ...

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 25, 2020

2015 journal article

Corrugated Sapphire Substrates for Organic Light-Emitting Diode Light Extraction

ACS Applied Materials & Interfaces, 7(17), 8974–8978.

By: W. Youn*, J. Lee*, M. Xu*, R. Singh* & F. So*

author keywords: OLED; surface plasmon mode; light extraction; high-refractive-index substrate
TL;DR: With an additional macro lens attached to the substrate to extract the substrate mode, this work demonstrated a green phosphorescent OLED with an extremely high external quantum efficiency of 63%. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2015 journal article

Effect of Polymer Side Chains on Charge Generation and Disorder in PBDTTPD Solar Cells

ACS APPLIED MATERIALS & INTERFACES, 7(48), 26999–27005.

By: I. Constantinou*, T. Lai*, E. Klump*, S. Goswami*, K. Schanze* & F. So*

author keywords: organic solar cells; organic photovoltaics; charge transfer states; carrier recombination; energetic disorder
TL;DR: Sub-bandgap external quantum efficiency (EQE) and transient photoluminescence (PL) measurements showed more-efficient carrier generation for the polymer with linear side chains, because of a higher degree of charge-transfer state delocalization leading to more- efficient exciton dissociation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Effect of Thermal Annealing on Charge Transfer States and Charge Trapping in PCDTBT:PC70BM Solar Cells

Advanced Electronic Materials, 1(9), 1500167.

By: I. Constantinou*, T. Lai*, H. Hsu*, S. Cheung*, E. Klump*, K. Schanze*, S. So*, F. So*

Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2015 journal article

High Efficiency Air-Processed Dithienogermole-Based Polymer Solar Cells

ACS Applied Materials & Interfaces, 7(8), 4826–4832.

By: I. Constantinou*, T. Lai*, D. Zhao*, E. Klump*, J. Deininger*, C. Lo*, J. Reynolds*, F. So*

author keywords: solar cells; organic photovoltaics; air processing conjugated polymers; dithienogermole; fullerenes; charge mobility
TL;DR: The effect of air processing, with air exposure varying from minutes to hours prior to encapsulation, on photovoltaic device performance has been studied through a series of electrical characterizations and optical simulations for a donor/acceptor polymer-based organic solar cell based on poly(dithienogermole-alt-thienopyrrolodione) p(DTG-TPD)/PC71BM blends. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2015 journal article

Origin of Sub-Bandgap Electroluminescence in Organic Light-Emitting Diodes

SMALL, 11(40), 5439–5443.

By: C. Xiang*, C. Peng*, Y. Chen* & F. So n

author keywords: charge transfer states; interfaces; organic light-emitting diodes; OLEDs; sub-bandgap electroluminescence; triplet-triplet annihilation
TL;DR: It is concluded that in rubrene/C60 devices, charge transfer excitons are generated at the rubrene-C60 interface under sub-bandgap driving conditions, leading to the formation of triplet exciteons, and sub- bandgap EL is the result of the subsequent triplet-triplet annihilation process. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Passivation of Metal Oxide Surfaces for High-Performance Organic and Hybrid Optoelectronic Devices

Chemistry of Materials, 27(7), 2532–2539.

By: S. Liu*, S. Ho*, Y. Chen* & F. So*

Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2015 journal article

Solid-state lighting: photonics and technologies

Journal of Photonics for Energy, 5.

By: N. Tansu & F. So

Source: NC State University Libraries
Added: August 6, 2018

2015 review

The role of photonics in energy

[Review of ]. JOURNAL OF PHOTONICS FOR ENERGY, 5.

By: Z. Kafafi*, R. Martin-Palma*, A. Nogueira*, . Deirdre M. O'Carroll*, J. Pietron*, I. Samuel*, F. So n, N. Tansu*, L. Tsakalakos*

author keywords: chemical energy conversion; dye sensitized cells; electrical energy conversion; energy; energy conservation; energy conversion; flat panel displays; International Year of Light; light management; light-emitting diodes; optical communications; optical interconnects; optoelectronics; organic light-emitting diodes; organic photovoltaics; organic-inorganic hybrid cells; perovskite solar cells; photocatalysis; photoelectrochemical solar cells; photonic crystals; photonics; photovoltaics; plasmonics; sensors; solar cells; solar fuels; solar harvesting; solid-state lighting; sun-tracking systems; thermal energy conversion; water-splitting
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Unraveling the Gain Mechanism in High Performance Solution-Processed PbS Infrared PIN Photodiodes

Advanced Functional Materials, 25(8), 1233–1238.

By: J. Lee*, D. Kim* & F. So*

Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2014 journal article

5.3: Highly Efficient Phosphorescent OLEDs Fabricated on Corrugated High-Index-Refractive Substrates

SID Symposium Digest of Technical Papers, 45(1), 40–41.

By: W. Youn, J. Lee, M. Xu, C. Xiang, R. Singh & F. So*

Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2014 journal article

Air-Stable, Solution-Processed Oxide p–n Heterojunction Ultraviolet Photodetector

ACS Applied Materials & Interfaces, 6(3), 1370–1374.

By: D. Kim*, J. Ryu*, J. Manders*, J. Lee* & F. So*

author keywords: photodetector; ultraviolet; NiO; ZnO; solution process
TL;DR: Air-stable solution processed all-inorganic p-n heterojunction ultraviolet photodetector is fabricated with a high gain due to the interfacial trap-induced charge injection that occurs at the ITO/NiO interface by photogenerated holes trapped in the NiO film. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2014 journal article

All Solution-Processed Inorganic/Organic Hybrid Permeable Metal-Base Transistor

Small, 10(18), 3650–3654.

By: J. Kim*, H. Yu*, R. Liu, D. Kim* & F. So*

author keywords: permeable metal-base transistor; solution-process; hybrid structure; porous electrode
TL;DR: All solution-processed inorganic/organic hybrid permeable-base transistor (PMBT) based on nickel oxide emitter and P3HT collector is developed and exhibits high common-base and common-emitter current gains with saturated output current. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2014 journal article

Batch-to-Batch Variation of Polymeric Photovoltaic Materials: its Origin and Impacts on Charge Carrier Transport and Device Performances

Advanced Energy Materials, 4(16), 1400768.

By: H. Lee*, Z. Li, I. Constantinou*, F. So*, S. Tsang* & S. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2014 journal article

Dielectric Effect on the Photovoltage Loss in Organic Photovoltaic Cells

Advanced Materials, 26(35), 6125–6131.

By: S. Chen*, S. Tsang*, T. Lai*, J. Reynolds* & F. So*

TL;DR: The VOC loss in several polymer-fullerene solar cells is determined and a major source of photovoltage loss is attributed to the low dielectric constants of the polymers. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2014 journal article

Effect of Nano-Porosity on High Gain Permeable Metal-Base Transistors

Advanced Functional Materials, 24(38), 6056–6065.

author keywords: permeable metal-base transistor; porosity; high gain; saturation
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2014 journal article

High-Efficiency Solution-Processed Planar Perovskite Solar Cells with a Polymer Hole Transport Layer

Advanced Energy Materials, 5(6), 1401855.

By: D. Zhao*, M. Sexton*, H. Park*, G. Baure*, J. Nino* & F. So*

author keywords: crystallization; hole transport layers; perovskite solar cells; planar structures; poly[N; N'-bis(4-butylphenyl)-N; N'-bis(phenyl)benzidine]
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2014 journal article

High-Efficiency Solution-Processed Planar Perovskite Solar Cells with a Polymer Hole Transport Layer

Advanced Energy Materials, 5(6), 1401855.

By: D. Zhao, M. Sexton, H. Park, G. Baure, J. Nino & F. So*

Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2014 journal article

Intrinsic delay of permeable base transistor

Journal of Applied Physics, 116(4), 044505.

By: W. Chen*, F. So* & J. Guo*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2014 journal article

Low-Noise Multispectral Photodetectors Made from All Solution-Processed Inorganic Semiconductors

Advanced Functional Materials, 9, n/a-n/a.

By: J. Manders*, T. Lai*, Y. An*, W. Xu*, J. Lee*, D. Kim*, G. Bosman*, F. So*

Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2014 journal article

Multi-spectral imaging with infrared sensitive organic light emitting diode

Scientific Reports, 4(1).

By: D. Kim*, T. Lai*, J. Lee*, J. Manders* & F. So*

TL;DR: A low cost infrared (IR) imaging camera is demonstrated with a commercially available digital single-lens reflex (DSLR) camera and an IR sensitive organic light emitting diode (IR-OLED) which is capable of capturing images at wavelengths in the near-infrared as well as visible regions. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 31, 2020

2014 journal article

Nickel Oxide Hole Injection/Transport Layers for Efficient Solution-Processed Organic Light-Emitting Diodes

Chemistry of Materials, 26(15), 4528–4534.

By: S. Liu*, R. Liu*, Y. Chen*, S. Ho*, J. Kim* & F. So*

Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2014 journal article

Organic Photovoltaic Cells: Dielectric Effect on the Photovoltage Loss in Organic Photovoltaic Cells (Adv. Mater. 35/2014)

Advanced Materials, 26(35), 6045–6045.

By: S. Chen*, S. Tsang*, T. Lai*, J. Reynolds* & F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2014 journal article

Phosphorescent dye-doped hole transporting layer for organic light-emitting diodes

Organic Electronics, 15(10), 2381–2386.

By: J. Kim*, Y. Chen*, R. Liu & F. So*

author keywords: Organic light-emitting diodes; Phosphorescent dye-doped hole; transporting layer; Operational stability
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2014 journal article

Phosphorescent organic light emitting diodes with a cross-linkable hole transporting material

Organic Electronics, 15(7), 1702–1706.

By: C. Xiang*, N. Chopra*, J. Wang*, C. Brown*, S. Ho*, M. Mathai*, F. So*

author keywords: Cross-linkable; Hole transporting material; Plexcore; Efficiency; Lifetime; OLEDs
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2014 journal article

Stable solution processed hole injection material for organic light-emitting diodes

Organic Electronics, 15(10), 2513–2517.

By: S. Ho*, C. Xiang*, R. Liu, N. Chopra*, M. Mathai* & F. So*

author keywords: Hole injection layer; Organic light emitting diode; Dark injection; Injection efficiency; Air-stability; Lifetime
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2013 journal article

A systematic study on efficiency enhancements in phosphorescent green, red and blue microcavity organic light emitting devices

Light: Science & Applications, 2(6), e74–e74.

By: C. Xiang*, W. Koo*, F. So*, H. Sasabe* & J. Kido*

author keywords: efficiency enhancements; microcavity; organic light emitting devices; phosphorescence; photopic luminosity
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2013 journal article

Charge transport study of semiconducting polymers and their bulk heterojunction blends by capacitance measurements

Journal of Polymer Science Part B: Polymer Physics, 51(8), 649–658.

By: K. Chan*, S. Tsang*, H. Lee*, F. So* & S. So*

Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2013 journal article

Defect-Induced Loss Mechanisms in Polymer–Inorganic Planar Heterojunction Solar Cells

ACS Applied Materials & Interfaces, 5(15), 7215–7218.

By: M. Hartel*, S. Chen*, B. Swerdlow*, H. Hsu*, J. Manders*, K. Schanze*, F. So*

author keywords: organic solar cell; ZnO nanoparticles; PCDTBT; defects; transient photovoltage; PL lifetime
TL;DR: Through passivation of the ZnO nanoparticles defects, the two loss mechanisms were reduced and the power conversion efficiency (PCE) is significantly enhanced. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2013 journal article

Direct Fabrication of Organic Light-Emitting Diodes on Buckled Substrates for Light Extraction

Advanced Optical Materials, 1(5), 404–408.

By: W. Koo*, Y. Zhe* & F. So*

Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2013 journal article

Energy Level Alignment and Sub-Bandgap Charge Generation in Polymer:Fullerene Bulk Heterojunction Solar Cells

Advanced Materials, 25(17), 2434–2439.

By: S. Tsang*, S. Chen* & F. So*

author keywords: polymer solar cells; bulk heterojunction; electroabsorption; effective bandgap; energy level alignment
MeSH headings : Electric Power Supplies; Electrodes; Energy Transfer; Equipment Design; Equipment Failure Analysis; Fullerenes / chemistry; Materials Testing; Polymers / chemistry; Solar Energy; Static Electricity
TL;DR: Using charge modulated electroabsorption spectroscopy (CMEAS), for the first time, the energy level alignment of a polymer:fullerene bulk heterojunction photovoltaic cell is directly measured. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2013 journal article

Energy Level Alignment and Sub-Bandgap Charge Generation in Polymer:Fullerene Bulk Heterojunction Solar Cells (Adv. Mater. 17/2013)

Advanced Materials, 25(17), 2433–2433.

By: S. Tsang*, S. Chen* & F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2013 journal article

Hole injection polymer effect on degradation of organic light-emitting diodes

Organic Electronics, 14(10), 2518–2522.

By: S. Chen*, X. Jiang* & F. So*

author keywords: Organic light emitting diode; Hole injection layer; Degradation; Lifetime; Capacitance
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2013 journal article

Investigation of the Role of the Acceptor Molecule in Bulk Heterojunction Photovoltaic Cells Using Impedance Spectroscopy

The Journal of Physical Chemistry C, 117(27), 13798–13804.

By: R. Casalini*, S. Tsang, J. Deininger*, F. Arroyave, J. Reynolds* & F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2013 journal article

Loss Mechanisms in Thick-Film Low-Bandgap Polymer Solar Cells

Advanced Energy Materials, 3(7), 909–916.

By: C. Small*, S. Tsang*, S. Chen*, S. Baek*, C. Amb*, J. Subbiah*, J. Reynolds*, F. So*

author keywords: organic solar cell; thickness dependence; dithienogermole
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2013 journal article

Properties of interlayer for organic photovoltaics

Materials Today, 16(11), 424–432.

By: T. Lai*, S. Tsang*, J. Manders*, S. Chen* & F. So*

Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2013 journal article

Solution-Processed Nickel Oxide Hole Transport Layers in High Efficiency Polymer Photovoltaic Cells

Advanced Functional Materials, 23(23), 2993–3001.

By: J. Manders*, S. Tsang*, M. Hartel*, T. Lai*, S. Chen*, C. Amb*, J. Reynolds*, F. So*

author keywords: polymer photovoltaics; organic electronics; hole transport layer; nickel oxide
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2012 journal article

Aesthetically Pleasing Conjugated Polymer:Fullerene Blends for Blue-Green Solar Cells Via Roll-to-Roll Processing

ACS Applied Materials & Interfaces, 4(3), 1847–1853.

By: C. Amb, M. Craig, U. Koldemir, J. Subbiah, K. Choudhury, S. Gevorgyan*, M. Jørgensen*, F. Krebs*, F. So*, J. Reynolds

author keywords: polymer solar cells; roll-to-roll printing/coating; slot-die coating; low band gap polymers
TL;DR: It is found that the optimum ratio of polymer to PCBM varies significantly when changing from spin-coating of thinner active layer films to slot-die coating, which requires somewhat thicker films, and the detrimental impacts on power conversion efficiency of high series resistance imparted by large electrodes are demonstrated. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2012 journal article

An isoindigo and dithieno[3,2-b:2′,3′-d]silole copolymer for polymer solar cells

Polym. Chem., 3(1), 89–92.

By: R. Stalder*, C. Grand*, J. Subbiah*, F. So* & J. Reynolds*

Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2012 journal article

Charge injection and transport studies of poly(2,7-carbazole) copolymer PCDTBT and their relationship to solar cell performance

Organic Electronics, 13(5), 850–855.

By: K. Chan*, S. Tsang*, H. Lee*, F. So* & S. So*

author keywords: PCDTBT; Charge transport properties; Dark-injection space-charge-limited current; Carrier mobility; Energetic disorder
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2012 journal article

Effect of vertical morphology on the performance of silole-containing low-bandgap inverted polymer solar cells

Solar Energy Materials and Solar Cells, 97, 97–101.

By: J. Subbiah*, C. Amb*, J. Reynolds* & F. So*

author keywords: Polymer solar cell; Vertical phase separation; Inverted solar cell; X-ray photoemission spectroscopy; Morphology; Auger spectroscopy
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2012 journal article

High-Efficiency Inverted Polymer Solar Cells with Double Interlayer

ACS Applied Materials & Interfaces, 4(2), 866–870.

By: J. Subbiah, C. Amb, I. Irfan*, Y. Gao*, J. Reynolds & F. So*

author keywords: inverted solar cell; photovoltaic; donor-acceptor; bulk heterojunction; conjugated polymers; low bandgap; silole polymer
TL;DR: UV photoemission spectroscopy results indicate that the formation of band bending due to interlayer leads to the enhancement in hole extraction in inverted polymer solar cells with double interlayer. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2012 journal article

Improved Performance of Molecular Bulk-Heterojunction Photovoltaic Cells through Predictable Selection of Solvent Additives

Advanced Functional Materials, 22(22), 4801–4813.

By: K. Graham*, P. Wieruszewski*, R. Stalder*, M. Hartel*, J. Mei*, F. So*, J. Reynolds*

author keywords: solvent additive processing; organic photovoltaic devices; organic solar cells; morphology; molecular bulk-heterojunction
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2012 journal article

Interplay of cleaning and de-doping in oxygen plasma treated high work function indium tin oxide (ITO)

Organic Electronics, 13(10), 2028–2034.

By: I. Irfan*, S. Graber*, F. So* & Y. Gao*

author keywords: Indium tin oxide (ITO); Organic photovoltaic; Organic light-emitting diode; Photo-emission spectroscopy
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2012 journal article

Inverted Polymer Solar Cells with Reduced Interface Recombination

Advanced Energy Materials, 2(11), 1333–1337.

By: S. Chen*, C. Small*, C. Amb*, J. Subbiah*, T. Lai*, S. Tsang*, J. Manders*, J. Reynolds*, F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2012 journal article

Light Extraction of Organic Light Emitting Diodes by Defective Hexagonal-Close-Packed Array

Advanced Functional Materials, 22(16), 3454–3459.

By: W. Koo*, W. Youn*, P. Zhu*, X. Li*, N. Tansu* & F. So*

author keywords: OLED; waveguide; extraction; defective hexagonal-close-packed array
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2012 journal article

Light Extraction: Light Extraction of Organic Light Emitting Diodes by Defective Hexagonal-Close-Packed Array (Adv. Funct. Mater. 16/2012)

Advanced Functional Materials, 22(16), 3453–3453.

By: W. Koo*, W. Youn*, P. Zhu*, X. Li*, N. Tansu* & F. So*

Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2012 journal article

Metal oxides for interface engineering in polymer solar cells

Journal of Materials Chemistry, 22(46), 24202.

By: S. Chen*, J. Manders*, S. Tsang* & F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2012 journal article

Origin of Enhanced Hole Injection in Inverted Organic Devices with Electron Accepting Interlayer

Advanced Functional Materials, 22(15), 3261–3266.

By: C. Small*, S. Tsang*, J. Kido*, S. So* & F. So*

author keywords: charge injection; inverted; organic electronics
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2012 journal article

P-110: Light extraction of Phosphorescent OLEDs by Defective Hexagonal-Close-Packed Array

SID Symposium Digest of Technical Papers, 43(1), 1474–1476.

By: W. Koo*, W. Yun*, P. Zhu*, X. Li*, N. Tansu* & F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2012 journal article

Solar Cells: Inverted Polymer Solar Cells with Reduced Interface Recombination (Adv. Energy Mater. 11/2012)

Advanced Energy Materials, 2(11), 1281–1281.

By: S. Chen*, C. Small*, C. Amb*, J. Subbiah*, T. Lai*, S. Tsang*, J. Manders*, J. Reynolds*, F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2012 journal article

Solution processed multilayer cadmium-free blue/violet emitting quantum dots light emitting diodes

Applied Physics Letters, 101(5), 053303.

By: C. Xiang*, W. Koo*, S. Chen*, F. So*, X. Liu*, X. Kong*, Y. Wang*

Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2012 journal article

Synthetic Principles Directing Charge Transport in Low-Band-Gap Dithienosilole–Benzothiadiazole Copolymers

Journal of the American Chemical Society, 134(21), 8944–8957.

By: P. Beaujuge*, H. Tsao*, M. Hansen*, C. Amb*, C. Risko*, J. Subbiah*, K. Choudhury*, A. Mavrinskiy* ...

TL;DR: It is shown that the degree of microstructural order achievable in the self-assembled organic semiconductors increases largely with increasing molecular weight and appropriate solubilizing-group substitution, and the extent of structural order attainable in p-channel OTFTs. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2011 journal article

DOWN-CONVERSION WHITE OLEDS: Down-Conversion White Organic Light-Emitting Diodes Using Microcavity Structure (Adv. Energy Mater. 2/2011)

Advanced Energy Materials, 1(2), 173–173.

By: J. Lee*, N. Chopra*, D. Bera*, S. Maslov*, S. Eom*, Y. Zheng*, P. Holloway*, J. Xue*, F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2011 journal article

Dithienogermole As a Fused Electron Donor in Bulk Heterojunction Solar Cells

Journal of the American Chemical Society, 133(26), 10062–10065.

By: C. Amb*, S. Chen*, K. Graham*, J. Subbiah*, C. Small*, F. So*, J. Reynolds*

TL;DR: The synthesis and bulk heterojunction photovoltaic performance of the first dithienogermole (DTG)-containing conjugated polymer is reported, with performance enhancement is a result of a higher short-circuit current and fill factor in the DTG-containing cells, which comes at the cost of a slightly lower open circuit voltage than for the DTS-based cells. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2011 journal article

Down-Conversion White Organic Light-Emitting Diodes Using Microcavity Structure

Advanced Energy Materials, 1(2), 174–178.

By: J. Lee*, N. Chopra*, D. Bera*, S. Maslov*, S. Eom*, Y. Zheng*, P. Holloway*, J. Xue*, F. So*

Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2011 journal article

High-efficiency inverted dithienogermole–thienopyrrolodione-based polymer solar cells

Nature Photonics, 6(2), 115–120.

By: C. Small*, S. Chen*, J. Subbiah*, C. Amb*, S. Tsang*, T. Lai*, J. Reynolds*, F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2011 journal article

PbSe Nanocrystal-Based Infrared-to-Visible Up-Conversion Device

Nano Letters, 11(5), 2109–2113.

By: D. Kim*, K. Choudhury, J. Lee, D. Song, G. Sarasqueta & F. So*

author keywords: Up-conversion; infrared; PbSe; OLED; quantum dot; ZnO
TL;DR: Low-cost hybrid up-conversion devices with infrared sensitivity to 1.5 μm were obtained by integrating a colloidal PbSe nanocrystal near-infrared sensitizing layer on a green phosphorescent organic light emitting diode with maximum photon-to-photon conversion efficiency of 1.3%. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2011 journal article

Photo-Carrier Recombination in Polymer Solar Cells Based on P3HT and Silole-Based Copolymer

Advanced Energy Materials, 1(5), 963–969.

By: S. Chen*, K. Choudhury*, J. Subbiah*, C. Amb*, J. Reynolds* & F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2011 journal article

Polydimethylsiloxane as a Macromolecular Additive for Enhanced Performance of Molecular Bulk Heterojunction Organic Solar Cells

ACS Applied Materials & Interfaces, 3(4), 1210–1215.

By: K. Graham*, J. Mei*, R. Stalder*, J. Shim*, H. Cheun*, F. Steffy*, F. So*, B. Kippelen*, J. Reynolds*

author keywords: bulk heterojunction; organic solar cell; molecular photovoltaic cell; morphology control; additive processing
TL;DR: PDMS is shown to have a strong influence on film morphology, with a significant decrease in film roughness and feature size observed, which leads to improved performance parameters, most notably an increase in the short circuit current density. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2011 journal article

Reorientation of the High Mobility Plane in Pentacene-Based Carbon Nanotube Enabled Vertical Field Effect Transistors

ACS Nano, 5(1), 291–298.

By: M. McCarthy, B. Liu, R. Jayaraman, S. Gilbert, D. Kim, F. So*, A. Rinzler

author keywords: vertical field effect transistor; X-ray diffraction; carbon nanotube; low voltage
TL;DR: The large current densities attained by carbon nanotube enabled vertical field effect transistors using crystalline organic channel materials are somewhat unexpected given the known large anisotropy in the mobility of crystalline organics and their conventional ordering on dielectric surfaces. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: December 28, 2020

2011 journal article

Understanding the performance and loss-mechanisms in donor–acceptor polymer based solar cells: Photocurrent generation, charge separation and carrier transport

Solar Energy Materials and Solar Cells, 95(8), 2502–2510.

By: K. Choudhury*, J. Subbiah*, S. Chen*, P. Beaujuge*, C. Amb*, J. Reynolds*, F. So*

author keywords: Donor-acceptor blends; Charge balance; Carrier transport; Photocurrent loss
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2011 journal article

n-Type Conjugated Polyisoindigos

Macromolecules, 44(16), 6303–6310.

By: R. Stalder, J. Mei, J. Subbiah*, C. Grand, L. Estrada, F. So*, J. Reynolds

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2010 journal article

Combined effects of MoO3 interlayer and PC70BM on polymer photovoltaic device performance

Organic Electronics, 11(5), 955–958.

By: J. Subbiah*, P. Beaujuge*, K. Choudhury*, S. Ellinger*, J. Reynolds* & F. So*

author keywords: Polymer solar cell; Interlayer; Bulk heterojunction; Semiconducting polymer; PCBM
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2010 journal article

Degradation Mechanisms in Small-Molecule and Polymer Organic Light-Emitting Diodes

Advanced Materials, 22(34), 3762–3777.

By: F. So* & D. Kondakov*

MeSH headings : Electrochemical Techniques; Luminescence; Nanotechnology / instrumentation; Nanotechnology / methods; Organic Chemicals / chemistry; Polymers / chemistry; Quantum Theory
TL;DR: This Progress Report, using examples in both small molecule and polymer OLEDs, the different degradation mechanisms in two types of devices are examined. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2010 journal article

Effect of Solvent Treatment on Solution-Processed Colloidal PbSe Nanocrystal Infrared Photodetectors

Chemistry of Materials, 22(11), 3496–3501.

By: G. Sarasqueta*, K. Choudhury* & F. So*

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2010 journal article

Efficient solution-processed hybrid polymer–nanocrystal near infrared light-emitting devices

Organic Electronics, 11(1), 23–28.

By: K. Choudhury*, D. Song* & F. So*

author keywords: Hybrid organic/inorganic; Nanocrystal; Polymer; Light-emitting device; Infrared
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2010 journal article

Electroluminescence from light-emitting polymer/ZnO nanoparticle heterojunctions at sub-bandgap voltages

Nano Today, 5(5), 384–389.

By: L. Qian*, Y. Zheng*, K. Choudhury*, D. Bera*, F. So*, J. Xue*, P. Holloway*

author keywords: PLED; Zinc oxide nanoparticles; Electroluminescence; Auger up-conversion
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2010 journal article

Energy level evolution of air and oxygen exposed molybdenum trioxide films

Applied Physics Letters, 96(24), 243307.

By: Irfan, H. Ding*, Y. Gao*, C. Small*, D. Kim*, J. Subbiah*, F. So*

author keywords: adsorption; molybdenum compounds; oxygen; thin films; ultraviolet photoelectron spectra; work function; X-ray photoelectron spectra
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2010 journal article

Energy level evolution of molybdenum trioxide interlayer between indium tin oxide and organic semiconductor

Applied Physics Letters, 96(7), 073304.

By: Irfan, H. Ding*, Y. Gao*, D. Kim*, J. Subbiah* & F. So*

author keywords: band structure; electric resistance; indium compounds; MIS structures; molybdenum compounds; organic semiconductors; photoelectron spectra; surface states; work function
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2010 journal article

Green Dioxythiophene-Benzothiadiazole Donor−Acceptor Copolymers for Photovoltaic Device Applications

Chemistry of Materials, 22(6), 2093–2106.

By: P. Beaujuge*, J. Subbiah*, K. Choudhury*, S. Ellinger*, T. McCarley*, F. So*, J. Reynolds*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2010 journal article

High efficiency and low roll-off blue phosphorescent organic light-emitting devices using mixed host architecture

Applied Physics Letters, 97(3), 033304.

By: N. Chopra*, J. Swensen*, E. Polikarpov*, L. Cosimbescu*, F. So* & A. Padmaperuma*

author keywords: organic compounds; organic light emitting diodes; phosphorescence; phosphors
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2010 journal article

MoO3/poly(9,9-dioctylfluorene-co-N-[4-(3-methylpropyl)]-diphenylamine) double-interlayer effect on polymer solar cells

Applied Physics Letters, 96(6), 063303.

By: J. Subbiah*, D. Kim*, M. Hartel* & F. So*

author keywords: conducting polymers; molybdenum compounds; organic semiconductors; photovoltaic cells; power conversion; semiconductor heterojunctions; solar cells
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2010 journal article

OLEDs: Degradation Mechanisms in Small-Molecule and Polymer Organic Light-Emitting Diodes (Adv. Mater. 34/2010)

Advanced Materials, 22(34), n/a-n/a.

By: F. So* & D. Kondakov*

Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2010 journal article

Organic Infrared Upconversion Device

Advanced Materials, 22(20), 2260–2263.

By: D. Kim*, D. Song*, N. Chopra*, P. De Somer* & F. So*

TL;DR: Yase and co-workers reported that fluorescentOLEDs with titanyl phthalocyanine (TiOPc) as a photosensitivehole injection layer exhibited NIR- to-blue as well as red-to-green upconversion. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2010 journal article

Organic and Inorganic Blocking Layers for Solution-Processed Colloidal PbSe Nanocrystal Infrared Photodetectors

Advanced Functional Materials, 21(1), 167–171.

By: G. Sarasqueta*, K. Choudhury*, J. Subbiah* & F. So*

Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2010 journal article

Variations in Hole Injection due to Fast and Slow Interfacial Traps in Polymer Light-Emitting Diodes with Interlayers

Advanced Functional Materials, 20(1), 119–130.

By: M. Harding*, D. Poplavskyy*, V. Choong*, F. So* & A. Campbell*

Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2009 journal article

Aluminum phthalocyanine chloride/C60 organic photovoltaic cells with high open-circuit voltages

Solar Energy Materials and Solar Cells, 93(9), 1688–1691.

By: D. Kim*, F. So* & Y. Gao*

author keywords: Organic photovoltaic; Aluminum phthalocyanine chloride; Open-circuit voltage
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2009 journal article

An ambipolar phosphine oxide-based host for high power efficiency blue phosphorescent organic light emitting devices

Applied Physics Letters, 94(22), 223304.

By: E. Polikarpov*, J. Swensen*, N. Chopra*, F. So* & A. Padmaperuma*

author keywords: organic light emitting diodes
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2009 journal article

Effect of electron injection and transport materials on efficiency of deep-blue phosphorescent organic light-emitting devices

Organic Electronics, 10(4), 686–691.

By: S. Eom*, Y. Zheng*, E. Wrzesniewski*, J. Lee*, N. Chopra*, F. So*, J. Xue*

author keywords: Deep-blue phosphorescent organic light-emitting devices (PHOLEDs); Electron transport materials; Alkaline doping; p-i-n; Dual-emissive-layer (D-EML)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2009 journal article

Effect of the Charge Balance on High-Efficiency Blue-Phosphorescent Organic Light-Emitting Diodes

ACS Applied Materials & Interfaces, 1(6), 1169–1172.

By: N. Chopra*, J. Lee*, Y. Zheng*, S. Eom*, J. Xue* & F. So*

author keywords: OLEDs; blue phosphorescence; charge balance; single-carrier devices
TL;DR: The charge balance in blue-phosphorescent devices was studied using single-carrier devices, and the results show that the transport is highly hole dominant. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2009 journal article

Efficient Green Solar Cells via a Chemically Polymerizable Donor−Acceptor Heterocyclic Pentamer

ACS Applied Materials & Interfaces, 1(6), 1154–1158.

By: J. Subbiah*, P. Beaujuge*, K. Choudhury*, S. Ellinger*, J. Reynolds* & F. So*

author keywords: green solar cell; donor-acceptor; bulk heterojunction; conjugated polymers; low band gap
MeSH headings : Electric Power Supplies; Electron Transport; Equipment Design; Equipment Failure Analysis; Green Chemistry Technology / instrumentation; Heterocyclic Compounds / chemistry; Heterocyclic Compounds / radiation effects; Light; Materials Testing; Polymers / chemistry; Polymers / radiation effects; Solar Energy; Zinc / chemistry; Zinc / radiation effects
TL;DR: It is found that the short-circuit current is very sensitive to the composition of the donor-acceptor blend and it increases with increasing acceptor concentration. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2009 journal article

Electronic structure and interactions of LiF doped tris (8-hydroxyquinoline) aluminum (Alq)

Chemical Physics Letters, 473(1-3), 92–95.

By: H. Ding*, K. Park*, Y. Gao*, D. Kim* & F. So*

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2009 journal article

Highly Efficient Hole Injection Using Polymeric Anode Materials for Small-Molecule Organic Light-Emitting Diodes

Advanced Functional Materials, 19(3), 491–496.

By: K. Choudhury*, J. Lee*, N. Chopra*, A. Gupta*, X. Jiang*, F. Amy*, F. So*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2009 journal article

SnPc:C60 bulk heterojunction organic photovoltaic cells with MoO3 interlayer

Solar Energy Materials and Solar Cells, 93(8), 1452–1456.

By: D. Kim*, G. Sarasqueta* & F. So*

author keywords: Organic photovoltaic; Tin (II) phthalocyanine; Molybdenum oxide
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2009 journal article

The effect of molybdenum oxide interlayer on organic photovoltaic cells

Applied Physics Letters, 95(9), 093304.

By: D. Kim*, J. Subbiah*, G. Sarasqueta*, F. So*, H. Ding*, Irfan, Y. Gao*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2009 journal article

White phosphorescent organic light-emitting devices with dual triple-doped emissive layers

Applied Physics Letters, 94(15), 153303.

By: S. Eom*, Y. Zheng*, E. Wrzesniewski*, J. Lee*, N. Chopra*, F. So*, J. Xue*

author keywords: organic light emitting diodes; phosphorescence
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2008 journal article

Carbon-Nanotube-Enabled Vertical Field Effect and Light-Emitting Transistors

Advanced Materials, 20(19), 3605–3609.

By: B. Liu*, M. McCarthy*, Y. Yoon*, D. Kim*, Z. Wu*, F. So*, P. Holloway*, J. Reynolds*, J. Guo*, A. Rinzler*

Sources: Crossref, NC State University Libraries
Added: September 10, 2020

2008 journal article

Cavity effects on light extraction in organic light emitting devices

Applied Physics Letters, 92(3), 033303.

By: J. Lee*, N. Chopra* & F. So*

Sources: Crossref, NC State University Libraries
Added: September 11, 2020

2008 journal article

Effects of solution-processed polymer interlayers on hole injection and device performance of polymer light-emitting diodes

Organic Electronics, 9(2), 183–190.

By: M. Harding*, D. Poplavskyy*, V. Choong*, A. Campbell* & F. So*

author keywords: polymer; light-emitting diode; interlayer; injection