Metal halide perovskite for X-ray and gamma-ray detection

Jingjing Zhao; Yuanxiang Feng; Lei Pan; Raymond Cao; Jinsong Huang

doi:10.1117/12.2567044

20 August 2020 Metal halide perovskite for X-ray and gamma-ray detection

Jingjing Zhao, Yuanxiang Feng, Lei Pan, Raymond Cao, Jinsong Huang

Proceedings Volume 11494, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXII; 1149407 (2020) https://doi.org/10.1117/12.2567044
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Abstract

Metal halide perovskites have arisen as a new family of semiconductors for room-temperature ionization radiation detectors due to their high stopping power, large and balanced electron-hole mobility-lifetime (mu-tau) product, and tunable bandgap. These materials are low-cost to make using solution process. The mu-tau of some perovskites are already close or superior to best CZT crystals, while the best resolution of gamma-ray spectrum does not catch up yet, most likely due to the ion migration and self-doping behavior in these materials. Here, we report a simple approach of additive-assisted inverse temperature crystallization (ITC) solution method to grow low-defect density single crystal. We also report our recent progress in developing flexible polycrystalline films for X-ray imaging with performance comparable to those of single crystals while they are much simpler to scale up to commercial relevant size.

Conference Presentation

Citation Download Citation

Jingjing Zhao, Yuanxiang Feng, Lei Pan, Raymond Cao, and Jinsong Huang "Metal halide perovskite for X-ray and gamma-ray detection", Proc. SPIE 11494, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXII, 1149407 (20 August 2020); https://doi.org/10.1117/12.2567044

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