Morphology control towards bright and stable inorganic halide perovskite light-emitting diodes

Fangming Jin; Bo Zhao; Bei Chu; Haifeng Zhao; Zisheng Su; Wenlian Li; Fu Rong ZHU

doi:10.1039/c7tc04631f

Morphology control towards bright and stable inorganic halide perovskite light-emitting diodes

Fangming Jin, Bo Zhao, Bei Chu, Haifeng Zhao, Zisheng Su, Wenlian Li, Fu Rong ZHU

Research output: Contribution to journal › Journal article › peer-review

36 Citations (Scopus)

28 Downloads (Pure)

Abstract

The effect of morphology control on the performance of inorganic cesium lead halide based green perovskite light-emitting diodes (PeLEDs) was analyzed. PeLEDs were prepared using two different formulation approaches: (1) the solution was prepared by dissolving CsPbBr₃ powders in dimethyl sulfoxide (DMSO), and (2) the precursor solution was formulated by dissolving CsBr and PbBr₂ powders with different molar ratios of CsBr to PbBr₂ in DMSO. A peak luminance of 4590 cd m^-2 was obtained for the PeLEDs prepared with CsPbBr₃-solution, which is 48 and 12 times higher than that of the optimized PeLEDs fabricated using CsBr/PbBr₂ precursor solutions with different molar ratios of CsBr to PbBr₂ of 2:::1 and 1:::1. Our results reveal that the morphology and control of excess Pb atoms in the perovskite emitting layer play an important role in modulating the current losses and the radiative decay rate, which were optimized in this work for attaining efficient operation of the PeLEDs.

Original language	English
Pages (from-to)	1573-1578
Number of pages	6
Journal	Journal of Materials Chemistry C
Volume	6
Issue number	6
DOIs	https://doi.org/10.1039/c7tc04631f
Publication status	Published - 2018

Scopus Subject Areas

Chemistry(all)
Materials Chemistry

Access to Document

10.1039/c7tc04631f

Full TextAccepted author manuscript, 936 KB

Cite this

@article{0ec4a3e6bda14d6fadafde2dec0eb94f,

title = "Morphology control towards bright and stable inorganic halide perovskite light-emitting diodes",

abstract = "The effect of morphology control on the performance of inorganic cesium lead halide based green perovskite light-emitting diodes (PeLEDs) was analyzed. PeLEDs were prepared using two different formulation approaches: (1) the solution was prepared by dissolving CsPbBr3 powders in dimethyl sulfoxide (DMSO), and (2) the precursor solution was formulated by dissolving CsBr and PbBr2 powders with different molar ratios of CsBr to PbBr2 in DMSO. A peak luminance of 4590 cd m-2 was obtained for the PeLEDs prepared with CsPbBr3-solution, which is 48 and 12 times higher than that of the optimized PeLEDs fabricated using CsBr/PbBr2 precursor solutions with different molar ratios of CsBr to PbBr2 of 2:::1 and 1:::1. Our results reveal that the morphology and control of excess Pb atoms in the perovskite emitting layer play an important role in modulating the current losses and the radiative decay rate, which were optimized in this work for attaining efficient operation of the PeLEDs.",

author = "Fangming Jin and Bo Zhao and Bei Chu and Haifeng Zhao and Zisheng Su and Wenlian Li and ZHU, {Fu Rong}",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China (Grants 61604149, 61376062, 61376022, 61575192 and 61504145); the Science and Technology Development Plan of Jilin Province (20170520130JH and 20140101094JC); the Project of Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices (KJS1615); the Hong Kong Baptist University Faculty Research Grant (FRG2/2016-17/088); the Interinstitutional Collaborative Research Scheme (RC-ICRS/15-16/04); and the Shenzhen Peacock Plan (KQTD20140630110339343).",

year = "2018",

doi = "10.1039/c7tc04631f",

language = "English",

volume = "6",

pages = "1573--1578",

journal = "Journal of Materials Chemistry C",

issn = "2050-7526",

publisher = "Royal Society of Chemistry",

number = "6",

}

TY - JOUR

T1 - Morphology control towards bright and stable inorganic halide perovskite light-emitting diodes

AU - Jin, Fangming

AU - Zhao, Bo

AU - Chu, Bei

AU - Zhao, Haifeng

AU - Su, Zisheng

AU - Li, Wenlian

AU - ZHU, Fu Rong

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (Grants 61604149, 61376062, 61376022, 61575192 and 61504145); the Science and Technology Development Plan of Jilin Province (20170520130JH and 20140101094JC); the Project of Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices (KJS1615); the Hong Kong Baptist University Faculty Research Grant (FRG2/2016-17/088); the Interinstitutional Collaborative Research Scheme (RC-ICRS/15-16/04); and the Shenzhen Peacock Plan (KQTD20140630110339343).

PY - 2018

Y1 - 2018

N2 - The effect of morphology control on the performance of inorganic cesium lead halide based green perovskite light-emitting diodes (PeLEDs) was analyzed. PeLEDs were prepared using two different formulation approaches: (1) the solution was prepared by dissolving CsPbBr3 powders in dimethyl sulfoxide (DMSO), and (2) the precursor solution was formulated by dissolving CsBr and PbBr2 powders with different molar ratios of CsBr to PbBr2 in DMSO. A peak luminance of 4590 cd m-2 was obtained for the PeLEDs prepared with CsPbBr3-solution, which is 48 and 12 times higher than that of the optimized PeLEDs fabricated using CsBr/PbBr2 precursor solutions with different molar ratios of CsBr to PbBr2 of 2:::1 and 1:::1. Our results reveal that the morphology and control of excess Pb atoms in the perovskite emitting layer play an important role in modulating the current losses and the radiative decay rate, which were optimized in this work for attaining efficient operation of the PeLEDs.

AB - The effect of morphology control on the performance of inorganic cesium lead halide based green perovskite light-emitting diodes (PeLEDs) was analyzed. PeLEDs were prepared using two different formulation approaches: (1) the solution was prepared by dissolving CsPbBr3 powders in dimethyl sulfoxide (DMSO), and (2) the precursor solution was formulated by dissolving CsBr and PbBr2 powders with different molar ratios of CsBr to PbBr2 in DMSO. A peak luminance of 4590 cd m-2 was obtained for the PeLEDs prepared with CsPbBr3-solution, which is 48 and 12 times higher than that of the optimized PeLEDs fabricated using CsBr/PbBr2 precursor solutions with different molar ratios of CsBr to PbBr2 of 2:::1 and 1:::1. Our results reveal that the morphology and control of excess Pb atoms in the perovskite emitting layer play an important role in modulating the current losses and the radiative decay rate, which were optimized in this work for attaining efficient operation of the PeLEDs.

UR - http://www.scopus.com/inward/record.url?scp=85041506251&partnerID=8YFLogxK

U2 - 10.1039/c7tc04631f

DO - 10.1039/c7tc04631f

M3 - Journal article

AN - SCOPUS:85041506251

SN - 2050-7526

VL - 6

SP - 1573

EP - 1578

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 6

ER -

Morphology control towards bright and stable inorganic halide perovskite light-emitting diodes

Abstract

Scopus Subject Areas

Access to Document

Other files and links

Fingerprint

Cite this