Heteroepitaxial passivation of Cs2AgBiBr6 wafers with suppressed ionic migration for X-ray imaging

Bo Yang; Weicheng Pan; Haodi Wu; Guangda Niu; Jun-Hui Yuan; Kan-Hao Xue; Lixiao Yin; Xinyuan Du; Xiang-Shui Miao; Xiaoquan Yang; Qingguo Xie; Jiang Tang

doi:10.1038/s41467-019-09968-3

Nature Communications (Apr 2019)

Heteroepitaxial passivation of Cs2AgBiBr6 wafers with suppressed ionic migration for X-ray imaging

Bo Yang,
Weicheng Pan,
Haodi Wu,
Guangda Niu,
Jun-Hui Yuan,
Kan-Hao Xue,
Lixiao Yin,
Xinyuan Du,
Xiang-Shui Miao,
Xiaoquan Yang,
Qingguo Xie,
Jiang Tang

Affiliations

Bo Yang: Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST)
Weicheng Pan: Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST)
Haodi Wu: Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST)
Guangda Niu: Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST)
Jun-Hui Yuan: School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST)
Kan-Hao Xue: School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST)
Lixiao Yin: Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST)
Xinyuan Du: Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST)
Xiang-Shui Miao: Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST)
Xiaoquan Yang: Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST)
Qingguo Xie: College of Life Science and Technology, Huazhong University of Science and Technology (HUST)
Jiang Tang: Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST)

DOI: https://doi.org/10.1038/s41467-019-09968-3
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 10

Abstract

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Ionic migration degrades not only the characteristics of halide perovskite solar cells, but also those of perovskite X-ray detectors. Here Yang et al. employ heteroepitaxial BiOBr to passivate Cs2AgBiBr6 double perovskite, which suppresses ionic migration and obtain high performance X-ray detectors.

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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