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

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

Abstract In this work, we fabricate poly(vinylpyrrolidone) (PVP)-treated Ruddlesden-Popper two-dimensional (quasi-2D) PPA2(CsPbBr3)2PbBr4 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 highe...

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Main Authors: Zijun Wang, Xiaoqiang Xu, Lin Gao, Xingwu Yan, Lu Li, Junsheng Yu
Format: Article
Language:English
Published: SpringerOpen 2020-02-01
Series:Nanoscale Research Letters
Subjects:
Quasi-2D perovskite
Perovskite light-emitting diodes
PVP
Morphology control
Repeatability
Online Access:https://doi.org/10.1186/s11671-020-3260-z
id doaj-94f44df2c8834792b10a04bcaf5993b7
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spelling doaj-94f44df2c8834792b10a04bcaf5993b72021-02-07T12:16:02ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2020-02-011511910.1186/s11671-020-3260-zHigh-Performance Quasi-2D Perovskite Light-Emitting Diodes Via Poly(vinylpyrrolidone) TreatmentZijun Wang0Xiaoqiang Xu1Lin Gao2Xingwu Yan3Lu Li4Junsheng Yu5Research Institute for New Materials Technology, Chongqing University of Arts and SciencesResearch Institute for New Materials Technology, Chongqing University of Arts and SciencesResearch Institute for New Materials Technology, Chongqing University of Arts and SciencesResearch Institute for New Materials Technology, Chongqing University of Arts and SciencesResearch Institute for New Materials Technology, Chongqing University of Arts and SciencesState Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC)Abstract In this work, we fabricate poly(vinylpyrrolidone) (PVP)-treated Ruddlesden-Popper two-dimensional (quasi-2D) PPA2(CsPbBr3)2PbBr4 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.https://doi.org/10.1186/s11671-020-3260-zQuasi-2D perovskitePerovskite light-emitting diodesPVPMorphology controlRepeatability
collection DOAJ
language English
format Article
sources DOAJ
author Zijun Wang
Xiaoqiang Xu
Lin Gao
Xingwu Yan
Lu Li
Junsheng Yu
spellingShingle Zijun Wang
Xiaoqiang Xu
Lin Gao
Xingwu Yan
Lu Li
Junsheng Yu
High-Performance Quasi-2D Perovskite Light-Emitting Diodes Via Poly(vinylpyrrolidone) Treatment
Nanoscale Research Letters
Quasi-2D perovskite
Perovskite light-emitting diodes
PVP
Morphology control
Repeatability
author_facet Zijun Wang
Xiaoqiang Xu
Lin Gao
Xingwu Yan
Lu Li
Junsheng Yu
author_sort Zijun Wang
title 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_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_sort high-performance quasi-2d perovskite light-emitting diodes via poly(vinylpyrrolidone) treatment
publisher SpringerOpen
series Nanoscale Research Letters
issn 1931-7573
1556-276X
publishDate 2020-02-01
description Abstract In this work, we fabricate poly(vinylpyrrolidone) (PVP)-treated Ruddlesden-Popper two-dimensional (quasi-2D) PPA2(CsPbBr3)2PbBr4 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.
topic Quasi-2D perovskite
Perovskite light-emitting diodes
PVP
Morphology control
Repeatability
url https://doi.org/10.1186/s11671-020-3260-z
work_keys_str_mv AT zijunwang highperformancequasi2dperovskitelightemittingdiodesviapolyvinylpyrrolidonetreatment
AT xiaoqiangxu highperformancequasi2dperovskitelightemittingdiodesviapolyvinylpyrrolidonetreatment
AT lingao highperformancequasi2dperovskitelightemittingdiodesviapolyvinylpyrrolidonetreatment
AT xingwuyan highperformancequasi2dperovskitelightemittingdiodesviapolyvinylpyrrolidonetreatment
AT luli highperformancequasi2dperovskitelightemittingdiodesviapolyvinylpyrrolidonetreatment
AT junshengyu highperformancequasi2dperovskitelightemittingdiodesviapolyvinylpyrrolidonetreatment
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