Large and Ultrastable All-Inorganic CsPbBr3 Monocrystalline Films: Low-Temperature Growth and Application for High-Performance Photodetectors

Zheng Yang; Qian Xu; Xiandi Wang; Junfeng Lu; Hui Wang; Fangtao Li; Li Zhang; Guofeng Hu; Caofeng Pan

doi:10.1002/adma.201802110

Large and Ultrastable All-Inorganic CsPbBr₃ Monocrystalline Films: Low-Temperature Growth and Application for High-Performance Photodetectors

Adv Mater. 2018 Nov;30(44):e1802110. doi: 10.1002/adma.201802110. Epub 2018 Sep 24.

Authors

Zheng Yang^{1

2}, Qian Xu^{1

2}, Xiandi Wang^{1

2}, Junfeng Lu^{1

2}, Hui Wang³, Fangtao Li¹, Li Zhang¹, Guofeng Hu^{1

2}, Caofeng Pan^{1

2}

Affiliations

¹ CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China.
² School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
³ Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing, 100191, P. R. China.

PMID: 30247791
DOI: 10.1002/adma.201802110

Abstract

Stability is a key problem that hinders the practical application of lead halide perovskite. Therefore, all-inorganic perovskite CsPbX₃ monocrystalline films are urgently needed to fabricate photoelectric devices. Herein, a low-temperature and substrate-independent growth method is demonstrated to grow millimeter-level inorganic perovskite monocrystalline thin films. These films present good optical and electrical properties comparable to bulk ones. What is more, they exhibit excellent long-term stability toward humidity and thermal treatment. The as-grown CsPbBr₃ monocrystalline films are then fabricated into photodetectors with high photodetection performance. These results demonstrate that the CsPbBr₃ monocrystalline films have potential in fabricating high-performance optoelectronic devices.

Keywords: CsPbBr3; monocrystalline films; photodetectors; stability.

Abstract

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