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Eliminating J-V hysteresis in perovskite solar cells via defect controlling

文献类型：期刊论文

作者Chen, Wei1,2; Sun, Kuan1; Ma, Chaoyan2; Leng, Chongqian2; Fua, Jiehao1,2; Hu, Lijun1; Li, Meng1; Wang, Ming3; Zang, Zhigang3; Tang, Xiaosheng3
刊名ORGANIC ELECTRONICS
出版日期2018-07-01
卷号58页码:283-289
关键词Perovskite solar cells Hysteresis Defects Crystallization Surface passivation
ISSN号1566-1199
DOI10.1016/j.orgel.2018.04.017
英文摘要Organometal halide perovskite solar cell enjoys a rapid development in the last decade. However, the severe J-V hysteresis existed in perovskite solar cells leads to an over- or under-estimation of device efficiency. Herein, we introduce an ammonium salt as a new dopant of perovskite. As a result, the J-V hysteresis is almost eliminated, and a higher average efficiency is obtained. Besides, the degradation under constant illumination in ambient atmosphere observed in control devices is greatly improved. Thin film characterizations reveal that the addition of ammonium salt leads to smoother, more homogenous and better crystalline perovskite films, which exhibit more intense photoluminescence and a little longer fluorescent lifetime. Such improvements are owing to the dual-functional sulfoxide (S=O) in the dopant that can assist in perovskite crystallization and passivate the surface defects, thus giving rise to the eliminated J-V hysteresis. Our results provide an easy way to eliminate the J-V hysteresis in perovskite solar cell.
资助项目National Natural Science Foundation of China[61504015] ; National Natural Science Foundation of China[21642013] ; Natural Science Foundation of Chongqing[cstc2017jcyjA0752] ; Natural Science Foundation of Chongqing[cstc2015jcyjB0628] ; Key Laboratory of Low-grade Energy Utilization Technologies and Systems[LLEUTS-2017004] ; Fundamental Research Funds for the Central Universities[106112017CDJQJ148805]
WOS研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:000432557000042
出版者ELSEVIER SCIENCE BV
源URL[http://119.78.100.138/handle/2HOD01W0/6482]  
专题微纳制造与系统集成研究中心
有机半导体材料研究中心
通讯作者Sun, Kuan; Lu, Shirong
作者单位1.Chongqing Univ, Sch Power Engn, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
3.Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Wei,Sun, Kuan,Ma, Chaoyan,et al. Eliminating J-V hysteresis in perovskite solar cells via defect controlling[J]. ORGANIC ELECTRONICS,2018,58:283-289.
APA Chen, Wei.,Sun, Kuan.,Ma, Chaoyan.,Leng, Chongqian.,Fua, Jiehao.,...&Lu, Shirong.(2018).Eliminating J-V hysteresis in perovskite solar cells via defect controlling.ORGANIC ELECTRONICS,58,283-289.
MLA Chen, Wei,et al."Eliminating J-V hysteresis in perovskite solar cells via defect controlling".ORGANIC ELECTRONICS 58(2018):283-289.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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