Subnanosecond X(γ)-Ray Sensor Based on CH<sub>3</sub>NH<sub>3</sub>PbCl<sub>3</sub> Perovskite Single Crystals
Jun Liu, Wenyi Shao, Qiang Xu, Yang Liu, Xiaoping Ouyang
Abstract
Organic-inorganic hybrid perovskite materials with unique properties (large mobility-lifetime product and low cost) have achieved high sensitivity radiation detection by using direct photon-to-current conversion. Here, we report a fast radiation detector based on perovskite single crystals by using indirect photon-to-photon conversion radiation detection. The X (γ)-ray excited light emission peak is located at 435 nm, which matches the response wavelength of most silicon-based photodetectors. The time profile was excited by pulsed gamma-ray with a duration about 3 ps. The fast decay time is 0.51 ns, and with full width at half maximum time resolution is 0.68 ns. The CH <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> NH <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> PbCl <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> single crystals scintillator exhibits good scintillation properties with fast decay time and good time resolution.