Size effect of lead-free halide double perovskite on luminescence property

被引：0

作者：

Peigeng Han ^{[1
,2
]}

Xue Zhang ^{[1
]}

Xin Mao ^{[1
,2
]}

Bin Yang ^{[1
,2
]}

Songqiu Yang ^{[1
]}

Zhaochi Feng ^{[3
]}

Donghui Wei ^{[4
]}

Weiqiao Deng ^{[1
,5
]}

T?nu Pullerits ^{[6
]}

Keli Han ^{[1
,5
]}

机构：

[1] State Key Laboratory of Molecular Reaction Dynamics,Dalian Institute of Chemical Physics,Chinese Academy of Science

[2] University of the Chinese Academy of Sciences

[3] State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Science

[4] College of Chemistry and Molecular Engineering,Zhengzhou University

[5] Institute of Molecular Sciences and Engineering,Shandong University

[6] Department of Chemical Physics and Nano Lund,Chemical Center,Lund University

来源：

Science China(Chemistry) | 2019年 / 10期

基金：

中国国家自然科学基金;

关键词：

double perovskite; bulk crystals; warm white; size effect; stability;

D O I：

暂无

中图分类号：

TQ422 [光化学物质];

学科分类号：

0817 ;

摘要：

Lead-free halide double perovskites have gathered wide scientific interest since they are environmentally friendly and stable.However,compared to the lead perovskites,their optoelectronic properties are compromised.Herein we report a series of bulk lead-free mixed Bi-In halide double perovskites:Cs;AgBi;In;Cl;（0<x<1）.The Cs;AgBi;In;Cl;breaks the parity-forbidden transition and retains direct band gap structure,having warm-white light emission,with photoluminescence quantum efficiency（PLQE）of 70.3%,much higher than the PLQE of reported lead perovskite materials.Its exciton self-trapping dynamics is investigated.Meanwhile,the Cs;AgBi;In;Cl;nanocrystals and Cs;AgBi;In;Cl;microcrystals can be synthesized by modified hot injection and rapid cooling crystallization,respectively.The size effect of Cs;AgBi;In;Cl;is studied on the photoluminescence（PL）property.Additionally,the bulk material exhibits excellent stability on exposure to light,humidity and air for more than 3 months.It is a promising candidate as highly efficient warm white-light emitting material for road lighting.

引用

页码：1405 / 1413

页数：9

共 4 条

[1]

Saidaminov MI,Almutlaq J,Sarmah S,Dursun I,Zhumekenov AA,Begum R,Pan J,Cho N,Mohammed OF,Bakr OM. ACS Energy Lett . 2016

[2]

Volonakis G,Haghighirad AA,Milot RL,Sio WH,Filip MR,Wenger B,Johnston MB,Herz LM,Snaith HJ,Giustino F. J Phys Chem Lett . 2017

[3]

Luo J,Wang X,Li S,Liu J,Guo Y,Niu G,Yao L,Fu Y,Gao L,Dong Q,Zhao C,Leng M,Ma F,Liang W,Wang L,Jin S,Han J,Zhang L,Etheridge J,Wang J,Yan Y,Sargent E H,Tang J. Nature . 2018

[4]

Cho,H,Jeong,S.-H,Park,M.-H,Kim,Y.-H,Wolf,C,Lee,C.-L,Heo,J.H,Sadhanala,A,Myoung,N,Yoo,S,Im,S.H,Friend,R.H,Lee,T.-W. Science . 2015

← 1 →