Nucleation-controlled growth of superior lead-free perovskite Cs3Bi2I9 single-crystals for high-performance X-ray detection

Zhang, Yunxia; Liu, Yucheng; Xu, Zhuo; Ye, Haochen; Yang, Zhou; You, Jiaxue; Liu, Ming; He, Yihui; Kanatzidis, Mercouri G.; Liu, Shengzhong

doi:10.1038/s41467-020-16034-w

articleNature CommunicationsMay 8, 2020GOLD OA

Nucleation-controlled growth of superior lead-free perovskite Cs3Bi2I9 single-crystals for high-performance X-ray detection

YZYunxia Zhang YLYucheng Liu ZXZhuo Xu HYHaochen Ye ZYZhou Yang

Dalian Institute of Chemical Physics · Chinese Academy of Sciences · +7 more institutions

PubMed

Indexed incrossrefdoajpubmed

Abstract

Abstract The organic-inorganic hybrid lead halide perovskites have emerged as a series of star materials for solar cells, lasers and detectors. However, the issues raised by the toxic lead element and marginal stability due to the volatile organic components have severely limited their potential applications. In this work, we develop a nucleation-controlled solution method to grow large size high-quality Cs 3 Bi 2 I 9 perovskite single crystals (PSCs). Using the technique, we harvest some centimeter-sized single crystals and achieved high device performance. We find that X-ray detectors based on PSCs exhibit high sensitivity of 1652.3 μC Gy air −1 cm −2 and very low detectable dose rate of 130 nGy air s −1 ,…

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Topics & keywords

Topics

Keywords

Nucleation
Materials science
Perovskite (structure)
Halide
X-ray detector
Detector
Thermal stability
Lead (geology)

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