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Two-step perovskite crystallization assisted with F-containing additives enables over 23% efficiency in perovskite solar cells

文献类型：期刊论文

作者Liu, Chuangjin1; Xu, Xueqing1,2; Zhang, Zhenlin1; Cao, Shuguang1; Han, Jin2; Zheng, Yupeng2; Bi, Zhuoneng2; Zhu, Yanqing1,2; Luo, Shizi1; Xu, Gang1,2
刊名JOURNAL OF SOLID STATE CHEMISTRY
出版日期2023-10-01
卷号326页码:8
关键词perovskite solar cells Hexafluorobenzene Crystallization management strategy PbI 2 layer morphology
ISSN号0022-4596
DOI10.1016/j.jssc.2023.124195
通讯作者Xu, Xueqing(xuxq@ms.giec.ac.cn) ; Xu, Gang(xugang@ms.giec.ac.cn)
英文摘要The two-step preparation of perovskite solar cells (PSCs) has attracted the interest of many researchers because this method can better control the nucleation and growth of perovskite thin films. This work proposes a crystallization management strategy to improve the quality of active layer with the assistant of F-containing additives with low boiling point. Hexafluorobenzene (HFB) is introduced into lead iodide (PbI2) precursor solutions, and HFB aggregation forms due to its low surface energies. As the result, nano porous PbI2 films are obtained after the evaporation of HFB during annealing process, leading to pinhole free perovskite films with large grain size and low defect states. As the consequence, the best power conversion efficiency (PCE) of 23.01% is obtained for the PSCs with HFB assisted perovskite films. Meanwhile HFB modified unencapsulated device maintains 88% of its initial PCE after aging for over 1440 h at 25 degrees C and 30% relative humidity in ambient conditions.
WOS关键词PERFORMANCE ; SURFACE ; FILMS ; GROWTH
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA 21061001] ; Project on Collaborative Innovation and Environmental Construction Platform of Guangdong Province[2018A050506067]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:001040154700001
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Project on Collaborative Innovation and Environmental Construction Platform of Guangdong Province
源URL[http://ir.giec.ac.cn/handle/344007/39221]  
专题中国科学院广州能源研究所
通讯作者Xu, Xueqing; Xu, Gang
作者单位1.Univ Sci & Technol China, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, IChEM, Shenyang 116023, Liaoning, Peoples R China
4.Hong Kong Polytech Univ, Res Inst Smart Energy RISE, Dept Elect & Informat Engn, Hong Kong 999077, Peoples R China
5.Guangna Technol Dev Co Ltd, Guangzhou 510770, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Chuangjin,Xu, Xueqing,Zhang, Zhenlin,et al. Two-step perovskite crystallization assisted with F-containing additives enables over 23% efficiency in perovskite solar cells[J]. JOURNAL OF SOLID STATE CHEMISTRY,2023,326:8.
APA Liu, Chuangjin.,Xu, Xueqing.,Zhang, Zhenlin.,Cao, Shuguang.,Han, Jin.,...&Liu, Jieling.(2023).Two-step perovskite crystallization assisted with F-containing additives enables over 23% efficiency in perovskite solar cells.JOURNAL OF SOLID STATE CHEMISTRY,326,8.
MLA Liu, Chuangjin,et al."Two-step perovskite crystallization assisted with F-containing additives enables over 23% efficiency in perovskite solar cells".JOURNAL OF SOLID STATE CHEMISTRY 326(2023):8.

入库方式： OAI收割

来源：广州能源研究所

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