Enhanced performance of BiI3-incorporated CsPbBr3 solar cells

被引：2

作者：

He, Yuqi ^{[1
,3
]}

Li, Zhenyang ^{[1
,2
]}

Liu, Manying ^{[1
]}

Liu, Saiqi ^{[1
]}

Fu, Junjie ^{[1
]}

Zhang, Yange ^{[1
]}

Li, Qiuye ^{[3
]}

Tong, Yuping ^{[2
]}

Zheng, Zhi ^{[1
]}

机构：

[1] Xuchang Univ, Inst Surface Micro & Nano Mat, Coll Chem & Mat Engn, Key Lab Micronano Mat Energy Storage & Convers Hen, Xuchang 461000, Henan, Peoples R China

[2] North China Univ Water Resources & Elect Power, Inst Mat & Engn, Zhengzhou 450045, Henan, Peoples R China

[3] Henan Univ, Natl & Local Joint Engn Res Ctr Appl Technol Hybri, Kaifeng 475004, Peoples R China

来源：

DALTON TRANSACTIONS | 2023年 / 52卷 / 46期

基金：

中国国家自然科学基金;

关键词：

EFFICIENT;

D O I：

10.1039/d3dt03055e

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

CsPbBr3 all-inorganic perovskite solar cells (PSCs) have been extensively investigated due to their remarkable stability. However, their limited film quality and wide bandgap result in a low photoelectric conversion efficiency (PCE). In this study, BiI3 was incorporated into CsPbBr3 films to synergistically enhance light absorption and film quality. It was found that the partial substitution of Pb2+ and Br- with Bi3+ and I- in CsPbBr3 improved film quality, enhanced light absorption, and facilitated charge transfer and extraction. The device incorporating BiI3-incorporated CsPbBr3 as a light absorbing layer achieved an efficiency of 9.54%, exhibiting a significant enhancement of 19.4% compared to the undoped device. This work provides a new incorporating strategy that collaboratively improves light absorption and film quality.

引用

页码：17308 / 17314

页数：7

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