The low temperature solution-processable SnO2 modified by Bi2O2S as an efficient electron transport layer for perovskite solar cells

doi:10.1016/j.electacta.2019.135197

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	The low temperature solution-processable SnO2 modified by Bi2O2S as an efficient electron transport layer for perovskite solar cells
	Chen, Jinyun 1,2; Bi, Zhuoneng 3; Xu, Xueqing3 ; Yu, Huangzhong 1,3
	2020-01-10
发表期刊	ELECTROCHIMICA ACTA
ISSN	0013-4686
卷号	330 页码:11
通讯作者	Xu, Xueqing(xuxq@ms.giec.ac.cn) ; Yu, Huangzhong(hzhyu@scut.edu.cn)
摘要	Electron transport layer (ETL), promoting electron transportation and electron extraction, is an essential component of high efficiency perovskite solar cells (PVSCs). SnO2 has been proved to be an excellent ETL for efficient PVSCs due to its good optical transparency, high electrical conductivity, and suitable band position. In this work, we develop low temperature solution-processable SnO2 thin film modified by Bi2O2S nanoparticles as effective ETL of PVSCs for the first time. The results show the modification of the Bi2O2S nanoparticles can passivate oxygen vacancies of SnO2 thin film, resulting in less charge recombination and improved charge transport. Furthermore, SnO2 thin film modified by Bi2O2S nanoparticles enhances film morphology of overlying perovskite active layer, including larger grain size, better crystallinity. These eventually result in a remarkable improvement of performance of PVSCs. Compared to PVSCs with pristine SnO2 as ETL, the power conversion efficiency (PCE) of PVSCs with SnO2 modified by optimized Bi2O2S nanoparticles as ETL is raised to 17.13% from 14.61% with suppressed hysteresis. In addition, the modification of Bi2O2S can slightly enhance the stability of PVSCs due to reduced oxygen vacancies of SnO2 and better crystallinity of perovskite film. This work not only provides an effective mean of surface modification of SnO2, but also shows the Bi2O2S material has potential for applications for PVSCs. (C) 2019 Elsevier Ltd. All rights reserved.
关键词	Tin oxide Bismuth oxysulfide Perovskite solar cells Electron transporting layer Oxygen vacancies Morphology
DOI	10.1016/j.electacta.2019.135197
关键词[WOS]	BISMUTH OXYSULFIDE ; TIN OXIDE ; PASSIVATION
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[61974045] ; Natural Science Foundation of Guangdong Province[2019A1515012092] ; Natural Science Foundation of Guangdong Province[2017A030313] ; Dongguan Core Technology Research Project Funding[2019622163008] ; Project on the Collaborative Innovation and Environmental Construction Platform of Guangdong Province[2018A050506067] ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development[Y909kp1001]
WOS研究方向	Electrochemistry
项目资助者	National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Dongguan Core Technology Research Project Funding ; Project on the Collaborative Innovation and Environmental Construction Platform of Guangdong Province ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development
WOS类目	Electrochemistry
WOS记录号	WOS:000501468400101
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/26103
专题	中国科学院广州能源研究所
通讯作者	Xu, Xueqing; Yu, Huangzhong
作者单位	1.South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510640, Guangdong, Peoples R China 2.South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jinyun,Bi, Zhuoneng,Xu, Xueqing,et al. The low temperature solution-processable SnO2 modified by Bi2O2S as an efficient electron transport layer for perovskite solar cells[J]. ELECTROCHIMICA ACTA,2020,330:11.
APA	Chen, Jinyun,Bi, Zhuoneng,Xu, Xueqing,&Yu, Huangzhong.(2020).The low temperature solution-processable SnO2 modified by Bi2O2S as an efficient electron transport layer for perovskite solar cells.ELECTROCHIMICA ACTA,330,11.
MLA	Chen, Jinyun,et al."The low temperature solution-processable SnO2 modified by Bi2O2S as an efficient electron transport layer for perovskite solar cells".ELECTROCHIMICA ACTA 330(2020):11.