Research Progress of Perovskite-Type Scintillation Crystals

Abstract

Abstract: Scintillation crystal materials can be used in the detection of X-rays, γ-rays, neutrons and other high energy particles. After more than 100 years of development, the detection and imaging technology which take scintillating crystals as the core have been widely used in nuclear medicine, high energy physics, safety inspection, industrial nondestructive inspection, space physics and nuclear prospecting. With the further research and development of scintillation crystal materials, the better halide scintillation crystals such as LaBr₃:Ce on the market are gradually unable to meet the needs of development due to their high production cost, anisotropy and brittleness. At the same time, perovskite-type scintillation crystal materials have gradually entered people's vision because of their easily improved deliquescence, lower production cost, easily adjusted growing conditions and good scintillation performance. In this paper, the crystal structure, property, growth method, development trend and application prospect of perovskite-type scintillation crystal materials ABX₃ (A⁺ is Cs⁺, B²⁺ is part alkali-earth metal ions, X^- is non-fluorine halogen ions) and K-based perovskite scintillation crystal materials are introduced emphatively. By doping some rare earth elements and improving the growth process, perovskite-type scintillation crystals with high light yield, good energy resolution and low cost can be widely used in the market.

Key words: scintillation crystal, perovskite, light yield, energy resolution, deliquescence, growth method

CLC Number:

O734
O782

ZHU Mengqi, WEN Hang, WANG Biao, WANG Qingbo, LI Jing, WANG Jiyang. Research Progress of Perovskite-Type Scintillation Crystals[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2021, 50(10): 1844-1857.

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