Two-dimensional halide perovskite as β-ray scintillator for nuclear radiation monitoring

Dejian Yu, Peng Wang, Fei Cao, Yu Gu, Jiaxin Liu, Zeyao Han, Bo Huang, Yousheng Zou, Xiaobao Xu () and Haibo Zeng ()
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Dejian Yu: Nanjing University of Science and Technology
Peng Wang: Nanjing University of Science and Technology
Fei Cao: Nanjing University of Science and Technology
Yu Gu: Nanjing University of Science and Technology
Jiaxin Liu: Nanjing University of Science and Technology
Zeyao Han: Nanjing University of Science and Technology
Bo Huang: Nanjing University of Science and Technology
Yousheng Zou: Nanjing University of Science and Technology
Xiaobao Xu: Nanjing University of Science and Technology
Haibo Zeng: Nanjing University of Science and Technology

Nature Communications, 2020, vol. 11, issue 1, 1-10

Abstract: Abstract Ensuring nuclear safety has become of great significance as nuclear power is playing an increasingly important role in supplying worldwide electricity. β-ray monitoring is a crucial method, but commercial organic scintillators for β-ray detection suffer from high temperature failure and irradiation damage. Here, we report a type of β-ray scintillator with good thermotolerance and irradiation hardness based on a two-dimensional halide perovskite. Comprehensive composition engineering and doping are carried out with the rationale elaborated. Consequently, effective β-ray scintillation is obtained, the scintillator shows satisfactory thermal quenching and high decomposition temperature, no functionality decay or hysteresis is observed after an accumulated radiation dose of 10 kGy (dose rate 0.67 kGy h−1). Besides, the two-dimensional halide perovskite β-ray scintillator also overcomes the notorious intrinsic water instability, and benefits from low-cost aqueous synthesis along with superior waterproofness, thus paving the way towards practical application.

Date: 2020
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DOI: 10.1038/s41467-020-17114-7

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