High-Performance Quasi-2D Perovskite Light-Emitting Diodes Via Poly(vinylpyrrolidone) Treatment

In this work, we fabricate poly(vinylpyrrolidone) (PVP)-treated Ruddlesden-Popper two-dimensional (quasi-2D) PPA(2)(CsPbBr(3))(2)PbBr(4) perovskite light-emitting diodes (PeLEDs) and achieved a peak brightness of 10,700 cd m(−2) and peak current efficiency of 11.68 cd A(−1), threefold and tenfold hi...

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Autores principales: Wang, Zijun, Xu, Xiaoqiang, Gao, Lin, Yan, Xingwu, Li, Lu, Yu, Junsheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2020
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7000616/
https://www.ncbi.nlm.nih.gov/pubmed/32020339
http://dx.doi.org/10.1186/s11671-020-3260-z
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author Wang, Zijun
Xu, Xiaoqiang
Gao, Lin
Yan, Xingwu
Li, Lu
Yu, Junsheng
author_facet Wang, Zijun
Xu, Xiaoqiang
Gao, Lin
Yan, Xingwu
Li, Lu
Yu, Junsheng
author_sort Wang, Zijun
collection PubMed
description In this work, we fabricate poly(vinylpyrrolidone) (PVP)-treated Ruddlesden-Popper two-dimensional (quasi-2D) PPA(2)(CsPbBr(3))(2)PbBr(4) perovskite light-emitting diodes (PeLEDs) and achieved a peak brightness of 10,700 cd m(−2) and peak current efficiency of 11.68 cd A(−1), threefold and tenfold higher than that of the pristine device (without PVP), respectively. It can be attributed that the additive of PVP can suppress the pinholes of perovskite films owing to the excellent film-forming property, inhibiting the leakage current. Besides, PVP treatment facilitates the formation of compact perovskite films with defect reduction. Our work paves a novel way for the morphology modulation of quasi-2D perovskite films.
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spelling pubmed-70006162020-02-21 High-Performance Quasi-2D Perovskite Light-Emitting Diodes Via Poly(vinylpyrrolidone) Treatment Wang, Zijun Xu, Xiaoqiang Gao, Lin Yan, Xingwu Li, Lu Yu, Junsheng Nanoscale Res Lett Nano Express In this work, we fabricate poly(vinylpyrrolidone) (PVP)-treated Ruddlesden-Popper two-dimensional (quasi-2D) PPA(2)(CsPbBr(3))(2)PbBr(4) perovskite light-emitting diodes (PeLEDs) and achieved a peak brightness of 10,700 cd m(−2) and peak current efficiency of 11.68 cd A(−1), threefold and tenfold higher than that of the pristine device (without PVP), respectively. It can be attributed that the additive of PVP can suppress the pinholes of perovskite films owing to the excellent film-forming property, inhibiting the leakage current. Besides, PVP treatment facilitates the formation of compact perovskite films with defect reduction. Our work paves a novel way for the morphology modulation of quasi-2D perovskite films. Springer US 2020-02-04 /pmc/articles/PMC7000616/ /pubmed/32020339 http://dx.doi.org/10.1186/s11671-020-3260-z Text en © The Author(s). 2020 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Wang, Zijun
Xu, Xiaoqiang
Gao, Lin
Yan, Xingwu
Li, Lu
Yu, Junsheng
High-Performance Quasi-2D Perovskite Light-Emitting Diodes Via Poly(vinylpyrrolidone) Treatment
title High-Performance Quasi-2D Perovskite Light-Emitting Diodes Via Poly(vinylpyrrolidone) Treatment
title_full High-Performance Quasi-2D Perovskite Light-Emitting Diodes Via Poly(vinylpyrrolidone) Treatment
title_fullStr High-Performance Quasi-2D Perovskite Light-Emitting Diodes Via Poly(vinylpyrrolidone) Treatment
title_full_unstemmed High-Performance Quasi-2D Perovskite Light-Emitting Diodes Via Poly(vinylpyrrolidone) Treatment
title_short High-Performance Quasi-2D Perovskite Light-Emitting Diodes Via Poly(vinylpyrrolidone) Treatment
title_sort high-performance quasi-2d perovskite light-emitting diodes via poly(vinylpyrrolidone) treatment
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7000616/
https://www.ncbi.nlm.nih.gov/pubmed/32020339
http://dx.doi.org/10.1186/s11671-020-3260-z
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