Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
Interface modification via Al2O3 with retarded charge recombinations for mesoscopic perovskite solar cells fabricated with spray deposition process in the air | |
Liang, Zhurong1,2; Bi, Zhuoneng1,2; Gao, Kai1,2; Fu, Yifei1,3; Guan, Pengyue1,3; Feng, Xialei1,3; Chai, Zhisheng1; Xu, Gang1,2; Xu, Xueqing1,2 | |
2019 | |
Source Publication | APPLIED SURFACE SCIENCE |
ISSN | 0169-4332 |
Volume | 463Pages:939-946 |
Corresponding Author | Xu, Xueqing(xuxq@ms.giec.ac.cn) |
Abstract | 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. |
Keyword | Perovskite solar cells Interface modification Al2O3 Charge recombination Stability |
DOI | 10.1016/j.apsusc.2018.08.077 |
WOS Keyword | CH3NH3PBI3 FILMS ; STABILITY ; LAYER ; ROUTE ; OXIDE ; TIO2 |
Indexed By | SCI |
Language | 英语 |
Funding Project | 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 Research Area | Chemistry ; Materials Science ; Physics |
Funding Organization | 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 Subject | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
WOS ID | WOS:000452782100106 |
Publisher | ELSEVIER SCIENCE BV |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.giec.ac.cn/handle/344007/24360 |
Collection | 中国科学院广州能源研究所 |
Corresponding Author | Xu, Xueqing |
Affiliation | 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 |
First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
Recommended Citation 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. |
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