Brian Akira Collins

Works (14)

Updated: July 5th, 2023 15:48

2014 journal article

Correlated Donor/Acceptor Crystal Orientation Controls Photocurrent Generation in All-Polymer Solar Cells

Advanced Functional Materials, 24(26), 4068–4081.

By: M. Schubert *, B. Collins n, H. Mangold *, I. Howard *, W. Schindler*, K. Vandewal *, S. Roland *, J. Behrends * ...

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

2014 journal article

Fullerene-Free Polymer Solar Cells with Highly Reduced Bimolecular Recombination and Field-Independent Charge Carrier Generation

The Journal of Physical Chemistry Letters, 5(16), 2815–2822.

By: S. Roland *, M. Schubert *, B. Collins n, J. Kurpiers *, Z. Chen, A. Facchetti, H. Ade n , D. Neher *

TL;DR: The results elucidate the similarities of this polymeric acceptor with the superior recombination properties of fullerene acceptors and reveal that the BMR is related to domain purity. (via Semantic Scholar)
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Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

2014 journal article

The influence of molecular orientation on organic bulk heterojunction solar cells

NATURE PHOTONICS, 8(5), 385–391.

By: J. Tumbleston n, B. Collins n, L. Yang *, A. Stuart *, E. Gann n, W. Ma n, W. You *, H. Ade n 

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

2013 journal article

Modifications in Morphology Resulting from Nanoimprinting Bulk Heterojunction Blends for Light Trapping Organic Solar Cell Designs

ACS Applied Materials & Interfaces, 5(16), 8225–8230.

By: J. Tumbleston n, A. Gadisa*, Y. Liu*, B. Collins n, E. Samulski *, R. Lopez, H. Ade n 

author keywords: organic solar cells; light trapping; bulk heterojunction morphology; X-ray microscopy; X-ray diffraction; nanoimprinting
MeSH headings : Absorption; Crystallization; Electric Power Supplies; Fullerenes / chemistry; Light; Polymers / chemistry; Solar Energy; Thiophenes / chemistry
TL;DR: It is demonstrated that imprinting poly(3-hexylthiophene) (P3HT) and fullerene BHJ blends leads to adverse morphological changes within the photoactive nanopattern which have been previously overlooked. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2012 journal article

Polarized X-ray scattering reveals non-crystalline orientational ordering in organic films

Nature Materials, 11(6), 536–543.

By: B. Collins n, J. Cochran*, H. Yan n, E. Gann n, C. Hub*, R. Fink *, C. Wang *, T. Schuettfort* ...

TL;DR: P-SoXS reveals scattering anisotropy in amorphous domains of all-polymer organic solar cells where interfacial interactions pattern orientational alignment in the matrix phase, which probably plays an important role in the photophysics. (via Semantic Scholar)
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Added: August 6, 2018

2012 journal article

Quantitative compositional analysis of organic thin films using transmission NEXAFS spectroscopy in an X-ray microscope

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 185(5-7), 119–128.

By: B. Collins n & H. Ade n 

author keywords: Near edge X-ray absorption fine structure (NEXAFS); Scanning transmission X-ray microscopy (STXM); Organic thin films; Quantitative analysis and methods; Sub-micron compositional measurement; X-ray scattering factors and optical constants
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

Soft x-ray scattering facility at the Advanced Light Source with real-time data processing and analysis

REVIEW OF SCIENTIFIC INSTRUMENTS, 83(4).

By: E. Gann n, A. Young *, B. Collins n, H. Yan n, J. Nasiatka *, H. Padmore *, H. Ade n , A. Hexemer *, C. Wang *

TL;DR: Of special interest is the development of a higher harmonic rejection system that improves the spectral purity of the x-ray beam. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
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2012 journal article

Studying Polymer/Fullerene Intermixing and Miscibility in Laterally Patterned Films with X-Ray Spectromicroscopy

SMALL, 8(12), 1920–1927.

By: X. He*, B. Collins n, B. Watts *, H. Ade n  & C. McNeill *

author keywords: fullerenes; miscibility; polymers; thin films; X-ray spectromicroscopy
MeSH headings : Fullerenes / chemistry; Microscopy / methods; Microscopy, Atomic Force / methods; Models, Chemical; Polymers / chemistry; Solar Energy; Spectrophotometry / methods; Surface Properties; Thiophenes / chemistry; X-Rays
TL;DR: A significant difference in the miscibilities of fullerene derivatives is demonstrated for poly(2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene) (PBTTT) and regiorandom poly( 3-hexylthiopane) (RRa-P3HT). (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

Synthesis, solid-state, and charge-transport properties of conjugated polythiophene-S,S-dioxides

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 51(1), 48–56.

By: J. Cochran*, E. Amir *, K. Sivanandan*, S. Ku*, J. Seo *, B. Collins n, J. Tumbleston n, M. Toney * ...

author keywords: polythiophene; polythiophene-S; S-dioxides; semiconducting polymers; thin film; X-ray scattering
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

The Importance of Fullerene Percolation in the Mixed Regions of Polymer-Fullerene Bulk Heterojunction Solar Cells

ADVANCED ENERGY MATERIALS, 3(3), 364–374.

By: J. Bartelt*, Z. Beiley*, E. Hoke*, W. Mateker*, J. Douglas*, B. Collins n, J. Tumbleston n, K. Graham * ...

author keywords: organic electronics; photovoltaic devices; solar cells; bulk heterojunctions; charge transport
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 journal article

Correlating the Efficiency and Nanomorphology of Polymer Blend Solar Cells Utilizing Resonant Soft X-ray Scattering

ACS NANO, 6(1), 677–688.

By: H. Yan n, B. Collins n, E. Gann n, C. Wang*, H. Ade n  & C. McNeill *

author keywords: bulk heterojunction; polymer blends; polymer solar cells; soft X-rays; X-ray scattering
MeSH headings : Electric Power Supplies; Equipment Design; Equipment Failure Analysis; Nanostructures / chemistry; Nanostructures / ultrastructure; Particle Size; Scattering, Radiation; Solar Energy; Statistics as Topic; X-Rays
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7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 journal article

Fullerene-Dependent Miscibility in the Silole-Containing Copolymer PSBTBT-08

MACROMOLECULES, 44(24), 9747–9751.

By: B. Collins n, Z. Li *, C. McNeill * & H. Ade n 

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Added: August 6, 2018

2011 journal article

Miscibility, Crystallinity, and Phase Development in P3HT/PCBM Solar Cells: Toward an Enlightened Understanding of Device Morphology and Stability

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2(24), 3135–3145.

By: B. Collins n, J. Tumbleston n & H. Ade n 

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

2010 journal article

Molecular Miscibility of Polymer-Fullerene Blends

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 1(21), 3160–3166.

By: B. Collins n, E. Gann n, L. Guignard n, X. He*, C. McNeill * & H. Ade n 

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Added: August 6, 2018

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