Lei Lei

College of Engineering

Works (10)

Updated: April 1st, 2024 08:05

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, ORCID
Added: March 25, 2024

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, ORCID, Crossref
Added: August 19, 2022

2022 journal article

Room-temperature superfluorescence in hybrid perovskites and its origins

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

By: M. Biliroglu n, G. Findik n, J. Mendes n, D. Seyitliyev n, L. Lei n, Q. Dong n, Y. Mehta n, V. Temnov*, F. So n , K. Gundogdu n 

Sources: Web Of Science, ORCID
Added: April 14, 2022

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, ORCID, Crossref
Added: February 15, 2021

2021 journal article

High-temperature superfluorescence in methyl ammonium lead iodide

Nature Photonics, 15(9), 676–680.

By: G. Findik n, M. Biliroglu n, D. Seyitliyev n, J. Mendes n, A. Barrette n, H. Ardekani n, L. Lei n, Q. Dong n, F. So n , K. Gundogdu n 

Sources: Web Of Science, ORCID, Crossref
Added: June 22, 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, ORCID
Added: March 8, 2021

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.

By: X. Yi n, C. Ho n , B. Gautam*, L. Lei n, A. Chowdhury*, B. Bahrami*, Q. Qiao *, F. So n 

UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID
Added: December 21, 2020

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, ORCID
Added: March 16, 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, ORCID
Added: September 7, 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, ORCID
Added: December 21, 2020

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