Interface modification via Al2O3 with retarded charge recombinations for mesoscopic perovskite solar cells fabricated with spray deposition process in the air

doi:10.1016/j.apsusc.2018.08.077

GIEC OpenIR

	Interface modification via Al2O3 with retarded charge recombinations for mesoscopic perovskite solar cells fabricated with spray deposition process in the air
	Liang, Zhurong 1,2; Bi, Zhuoneng 1,2; Gao, Kai 1,2; Fu, Yifei 1,3; Guan, Pengyue 1,3; Feng, Xialei 1,3; Chai, Zhisheng 1; Xu, Gang1,2 ; Xu, Xueqing1,2
	2019
发表期刊	APPLIED SURFACE SCIENCE
ISSN	0169-4332
卷号	463 页码:939-946
通讯作者	Xu, Xueqing(xuxq@ms.giec.ac.cn)
摘要	In common perovskite solar cells utilizing TiO2 as electron transport layer, undesirable charge recombination at TiO2/CH3NH3PbI3 interface is one of the crucial issues to the photovoltaic performance of the device. Moreover, exposure of TiO2 under long-term solar illumination may also cause deep trap states at TiO2 surface and seriously influence the device stability. Herein, we introduce an insulating ultra-thin Al2O3 interfacial layer between the mesoporous TiO2 film and perovskite layer. The power conversion efficiency of the solar cells fabricated via spray deposition in the air increased from 9.36% (V-oc= 0.86 V, J(sc)= 17.21 mA cm(-2), FF=0.63) to 12.79% (V-oc = 0.93 V, J(sc) = 21.56 mA cm(-2), FF = 0.64). The significantly improved photovoltaic performance is mainly attributed to the efficient reduction of charge recombination. Meanwhile, the Al2O3-modified perovskite solar cells exhibit a strong stability under long-term light exposure compared with the common device without the Al2O3 interfacial layer.
关键词	Perovskite solar cells Interface modification Al2O3 Charge recombination Stability
DOI	10.1016/j.apsusc.2018.08.077
关键词[WOS]	CH3NH3PBI3 FILMS ; STABILITY ; LAYER ; ROUTE ; OXIDE ; TIO2
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[21073193] ; National Natural Science Foundation of China[21273241] ; Project on the Collaborative Innovation and Environmental Construction Platform of Guangdong Province[2014A050503051] ; Natural Science Foundation of Guangdong Province[2015A030310501]
WOS研究方向	Chemistry ; Materials Science ; Physics
项目资助者	National Natural Science Foundation of China ; Project on the Collaborative Innovation and Environmental Construction Platform of Guangdong Province ; Natural Science Foundation of Guangdong Province
WOS类目	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000452782100106
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：20[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/344007/24360
专题	中国科学院广州能源研究所
通讯作者	Xu, Xueqing
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.South China Agr Univ, Mat & Energy Inst, Guangzhou 510640, Guangdong, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Liang, Zhurong,Bi, Zhuoneng,Gao, Kai,et al. Interface modification via Al2O3 with retarded charge recombinations for mesoscopic perovskite solar cells fabricated with spray deposition process in the air[J]. APPLIED SURFACE SCIENCE,2019,463:939-946.
APA	Liang, Zhurong.,Bi, Zhuoneng.,Gao, Kai.,Fu, Yifei.,Guan, Pengyue.,...&Xu, Xueqing.(2019).Interface modification via Al2O3 with retarded charge recombinations for mesoscopic perovskite solar cells fabricated with spray deposition process in the air.APPLIED SURFACE SCIENCE,463,939-946.
MLA	Liang, Zhurong,et al."Interface modification via Al2O3 with retarded charge recombinations for mesoscopic perovskite solar cells fabricated with spray deposition process in the air".APPLIED SURFACE SCIENCE 463(2019):939-946.