Trifluoroacetate induced small-grained CsPbBr3 perovskite films result in efficient and stable light-emitting devices

Haoran Wang; Xiaoyu Zhang; Qianqian Wu; Fan Cao; Dongwen Yang; Yuequn Shang; Zhijun Ning; Wei Zhang; Weitao Zheng; Yanfa Yan; Stephen V. Kershaw; Lijun Zhang; Andrey L. Rogach; Xuyong Yang

doi:10.1038/s41467-019-08425-5

Nature Communications (Feb 2019)

Trifluoroacetate induced small-grained CsPbBr3 perovskite films result in efficient and stable light-emitting devices

Haoran Wang,
Xiaoyu Zhang,
Qianqian Wu,
Fan Cao,
Dongwen Yang,
Yuequn Shang,
Zhijun Ning,
Wei Zhang,
Weitao Zheng,
Yanfa Yan,
Stephen V. Kershaw,
Lijun Zhang,
Andrey L. Rogach,
Xuyong Yang

Affiliations

Haoran Wang: Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University
Xiaoyu Zhang: Key Laboratory of Automobile Materials of Ministry of Education, State Key Laboratory of Superhard Materials, and College of Materials Science, Jilin University
Qianqian Wu: Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University
Fan Cao: Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University
Dongwen Yang: Key Laboratory of Automobile Materials of Ministry of Education, State Key Laboratory of Superhard Materials, and College of Materials Science, Jilin University
Yuequn Shang: School of Physical Science and Technology, ShanghaiTech University
Zhijun Ning: School of Physical Science and Technology, ShanghaiTech University
Wei Zhang: Key Laboratory of Automobile Materials of Ministry of Education, State Key Laboratory of Superhard Materials, and College of Materials Science, Jilin University
Weitao Zheng: Key Laboratory of Automobile Materials of Ministry of Education, State Key Laboratory of Superhard Materials, and College of Materials Science, Jilin University
Yanfa Yan: Department of Physics and Astronomy and Wright Center for Photovoltaics Innovation and Commercialization, The University of Toledo
Stephen V. Kershaw: Department of Materials Science and Engineering, and Centre for Functional Photonics (CFP), City University of Hong Kong
Lijun Zhang: Key Laboratory of Automobile Materials of Ministry of Education, State Key Laboratory of Superhard Materials, and College of Materials Science, Jilin University
Andrey L. Rogach: Department of Materials Science and Engineering, and Centre for Functional Photonics (CFP), City University of Hong Kong
Xuyong Yang: Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University

DOI: https://doi.org/10.1038/s41467-019-08425-5
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 10

Abstract

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All-inorganic cesium lead bromide perovskite based light-emitting diodes show improved operational stability but the film quality limits their performance. Here Wang et al. use trifluoroacetate anions to passivate defects and achieve excellent device performance and stability.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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