Low Temperature Fabrication for High Performance Flexible CsPbI2Br Perovskite Solar Cells

doi:10.1002/advs.201801117

	Low Temperature Fabrication for High Performance Flexible CsPbI2Br Perovskite Solar Cells
	Li, Guijun 2; Yin, Guannan 1; Liu, Zhike 1; Yan, Feng 2; Han, Yu 1; Liu, Shengzhong (Frank)1,3; Jiang, Hong 1; Feng, Jiangshan 1; Zhao, Huan 1
刊名	ADVANCED SCIENCE
	2018-11-01
卷号	5 期号:11 页码:8
关键词	CsPbI2Br flexible high performance high stability low temperature
ISSN号	2198-3844
DOI	10.1002/advs.201801117
通讯作者	Liu, Zhike(zhike2015@snnu.edu.cn) ; Liu, Shengzhong (Frank)(szliu@dicp.ac.cn)
英文摘要	All-inorganic CsPbX3-based perovskites, such as CsPbI2Br, show much better thermal and illumination stability than their organic-inorganic hybrid counterparts. However, fabrication of high-quality CsPbI2Br perovskite film normally requires annealing at a high temperature (>250 degrees C) that is not compatible with the plastic substrate. In this work, a Lewis base adduct-promoted growth process that makes it possible to fabricate high quality CsPbI2Br perovskite films at low temperature is promoted. The mechanism is attributed to synthesized dimethyl sulfoxide (DMSO) adducts which allow a low activation energy route to form CsPbI2Br perovskite films during the thermal annealing treatment. A power conversion efficiency (PCE) of 13.54% is achieved. As far as it is known, this is the highest efficiency for the CsPbI2Br solar cells fabricated at low temperature (120 degrees C). In addition, the method enables fabrication of flexible CsPbI2Br PSCs with PCE as high as 11.73%. Surprisingly, the bare devices without any encapsulation maintain 70% of their original PCEs after being stored in ambient air for 700 h. This work provides an approach for preparing other high performance CsPbX3-based perovskite solar cells (PSCs) at low temperature, particularly for flexible ones.
资助项目	National Key Research and Development Program of China[2016YFA0202403] ; National Natural Science Foundation of China[61704101] ; Natural Science Foundation of Shaanxi Province[2017JM6020] ; Fundamental Research Funds for the Central Universities[GK201702003] ; Fundamental Research Funds for the Central Universities[GK201603053] ; 111 Project[B14041] ; Natural Science Foundation of Shaanxi Provincial Department of Education[2017KW-023]
WOS关键词	ELECTRON-TRANSPORT LAYER ; EFFICIENCY
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	WILEY
WOS记录号	WOS:000451173200015
资助机构	National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 111 Project ; 111 Project ; Natural Science Foundation of Shaanxi Provincial Department of Education ; Natural Science Foundation of Shaanxi Provincial Department of Education ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 111 Project ; 111 Project ; Natural Science Foundation of Shaanxi Provincial Department of Education ; Natural Science Foundation of Shaanxi Provincial Department of Education ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 111 Project ; 111 Project ; Natural Science Foundation of Shaanxi Provincial Department of Education ; Natural Science Foundation of Shaanxi Provincial Department of Education ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 111 Project ; 111 Project ; Natural Science Foundation of Shaanxi Provincial Department of Education ; Natural Science Foundation of Shaanxi Provincial Department of Education
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166552]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Liu, Zhike; Liu, Shengzhong (Frank)
作者单位	1.Shaanxi Normal Univ, Sch Mat Sci & Engn, Shaanxi Engn Lab Adv Energy Technol, Key Lab Appl Surface & Colloid Chem,Minist Educ,S, Xian 710119, Shaanxi, Peoples R China 2.Hong Kong Polytech Univ, Dept Appl Phys, Kowloon 999077, Hong Kong, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy iChEM, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Li, Guijun,Yin, Guannan,Liu, Zhike,et al. Low Temperature Fabrication for High Performance Flexible CsPbI2Br Perovskite Solar Cells[J]. ADVANCED SCIENCE,2018,5(11):8.
APA	Li, Guijun.,Yin, Guannan.,Liu, Zhike.,Yan, Feng.,Han, Yu.,...&Zhao, Huan.(2018).Low Temperature Fabrication for High Performance Flexible CsPbI2Br Perovskite Solar Cells.ADVANCED SCIENCE,5(11),8.
MLA	Li, Guijun,et al."Low Temperature Fabrication for High Performance Flexible CsPbI2Br Perovskite Solar Cells".ADVANCED SCIENCE 5.11(2018):8.