Unveiling the interfacial electrochemiluminescence behavior of lead halide perovskite nanocrystals

被引：15

作者：

Qiu, Linghang ^{[1
]}

Lin, Longhui ^{[1
]}

Huang, Yipeng ^{[1
]}

Lai, Zhiwei ^{[1
]}

Li, Feiming ^{[1
]}

Wang, Shuya ^{[1
]}

Lin, Fangyuan ^{[1
]}

Li, Jianfeng ^{[1
]}

Wang, Yiru ^{[1
]}

Chen, Xi ^{[1
,2
,3
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, MOE Key Lab Spectrochem Anal & Instrumentat, Xiamen 361005, Fujian, Peoples R China

[2] Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Fujian, Peoples R China

[3] Xiamen Univ, Shenzhen Res Inst, Xiamen 361005, Fujian, Peoples R China

来源：

NANOSCALE ADVANCES | 2019年 / 1卷 / 10期

基金：

中国国家自然科学基金;

关键词：

CH3NH3PBI3; PEROVSKITE; CAPPING LIGANDS; EFFICIENT; ELECTROCHEMISTRY; RECOMBINATION; SIZE;

D O I：

10.1039/c9na00456d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, a three-phase heterostructure interface including glassy carbon (conducting medium), CsPbBr3 perovskite nanocrystals (PNCs, emitter) and acetonitrile (electrolyte) is constructed for fully investigating the interfacial electrochemiluminescence (ECL) behavior of CsPbBr3 PNCs. We find that these interfaces serve as bridges for efficient electron-hole transfer during the ECL process. As a proof of concept, the increase of the heterostructure interface area will accordingly enhance the ECL intensity of CsPbBr3 PNCs. About seven-fold enhancement of the ECL intensity could be achieved when the interface area has triple-fold increase, which provides a new perspective to construct more efficient ECL systems via interface engineering.

引用

页码：3957 / 3962

页数：6

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