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Stabilizing black-phase formamidinium perovskite formation at room temperature and high humidity
Wei Hui1; Lingfeng Chao2; Hui Lu1; Fei Xia1; Qi Wei3; Zhenhuang Su4; Tingting Niu2; Lei Tao1; Bin Du1; Deli Li2; Yue Wang2; He Dong2; Shouwei Zuo5; Bixin Li6; Wei Shi1; Xueqin Ran1; Ping Li1; Hui Zhang1; Zhongbin Wu2; Chenxin Ran2; Lin Song2; Guichuan Xing3; Xingyu Gao4; Jing Zhang5; Yingdong Xia1; Yonghua Chen1; Wei Huang1,2,7
2021-03-26
Source PublicationScience
ISSN0036-8075
Volume371Issue:6536Pages:1359-1364
Other Abstract

The stabilization of black-phase formamidinium lead iodide (a-FAPbI) perovskite under various environmental conditions is considered necessary for solar cells. However, challenges remain regarding the temperature sensitivity of a-FAPbI and the requirements for strict humidity control in its processing. Here we report the synthesis of stable a-FAPbI, regardless of humidity and temperature, based on a vertically aligned lead iodide thin film grown from an ionic liquid, methylamine formate. The vertically grown structure has numerous nanometer-scale ion channels that facilitate the permeation of formamidinium iodide into the lead iodide thin films for fast and robust transformation to a-FAPbI. A solar cell with a power-conversion efficiency of 24.1% was achieved. The unencapsulated cells retain 80 and 90% of their initial efficiencies for 500 hours at 85°C and continuous light stress, respectively.

DOI10.1126/science.abf7652
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000636043400049
PublisherAMER ASSOC ADVANCEMENT SCIENCE,1200 NEW YORK AVE, NW, WASHINGTON, DC 20005
Scopus ID2-s2.0-85103476084
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Citation statistics
Cited Times [WOS]:28   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorYonghua Chen; Wei Huang
Affiliation1.Key Laboratory of Flexible Electronics (KLoFE), Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 30 South Puzhu Road, 211816, China
2.Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering, Northwestern Polytechnical University, Xi'an, 127 West Youyi Road, 710072, China
3.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Avenida da Universidade, 999078, Macao
4.Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 239 Zhangheng Road, 201204, China
5.Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
6.Department of Educational Science, Laboratory of College Physics, Hunan First Normal University, Changsha, 410205, China
7.Key Laboratory for Organic Electronics, Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
Recommended Citation
GB/T 7714
Wei Hui,Lingfeng Chao,Hui Lu,et al. Stabilizing black-phase formamidinium perovskite formation at room temperature and high humidity[J]. Science,2021,371(6536):1359-1364.
APA Wei Hui.,Lingfeng Chao.,Hui Lu.,Fei Xia.,Qi Wei.,Zhenhuang Su.,Tingting Niu.,Lei Tao.,Bin Du.,Deli Li.,Yue Wang.,He Dong.,Shouwei Zuo.,Bixin Li.,Wei Shi.,Xueqin Ran.,Ping Li.,Hui Zhang.,Zhongbin Wu.,...&Wei Huang.(2021).Stabilizing black-phase formamidinium perovskite formation at room temperature and high humidity.Science,371(6536),1359-1364.
MLA Wei Hui,et al."Stabilizing black-phase formamidinium perovskite formation at room temperature and high humidity".Science 371.6536(2021):1359-1364.
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