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人工晶体学报 ›› 2025, Vol. 54 ›› Issue (8): 1330-1351.DOI: 10.16553/j.cnki.issn1000-985x.2025.0094

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辐射探测用金属卤化物钙钛矿单晶闪烁体

张磊磊1(), 薛泽旭1, 孙炼1(), 刘阳2, 王鲁凯1, 王尊刚1()   

  1. 1.核生化灾害防护化学全国重点实验室,北京 102205
    2.山东大学,晶体材料全国重点实验室,济南 250100
  • 收稿日期:2025-04-26 出版日期:2025-08-20 发布日期:2025-09-01
  • 通信作者: 孙炼,博士,助理研究员。E-mail:sunlian12@alumni.nudt.edu.cn;王尊刚,硕士,研究员。E-mail:zhigang7991@163.com
  • 作者简介:张磊磊(1990—),女,山东省人,博士,助理研究员。E-mail:zhangleilei@sklnbcpc.cn
  • 基金资助:
    国家自然科学基金(12405358)

Metal Halide Perovskite Single Crystal Scintillators for Radiation Detection

ZHANG Leilei1(), XUE Zexu1, SUN Lian1(), LIU Yang2, WANG Lukai1, WANG Zungang1()   

  1. 1.State Key Laboratory of Chemistry for NBC Hazards Protection,Beijing 102205,China
    2.State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China
  • Received:2025-04-26 Online:2025-08-20 Published:2025-09-01

摘要: 闪烁体是一种通过粒子辐射或电离射线辐射激发发光的材料,经过100多年的发展,已广泛应用于高能物理、天体物理、辐射成像、国土安全等领域。现市面上所售闪烁体探测器材料大多为NaI∶Tl、LaBr3∶Ce等离子掺杂型发光闪烁体,有易潮解、自放射性本底、高脆性等缺点,已逐渐不能满足日益复杂的辐射探测应用场景。金属卤化物钙钛矿闪烁材料因结构可调性和化学组分多样性的优势,展现出比传统无机闪烁体更优异的性能。其中金属卤化物钙钛矿单晶具有三维结构长程有序、无晶界、缺陷密度低、环境稳定性好与低成本等特点,在辐射探测领域中展现出更大的优势,成为近年来最具有竞争力的辐射探测发光材料之一。本文从分子结构、材料分类及辐射特性等角度全面总结了金属卤化钙钛矿闪烁单晶及其在辐射探测领域的研究进展,并对其在该领域未来的优化方向进行了展望,旨在使读者综合了解金属卤化物钙钛矿闪烁晶体的辐射特性,为新型闪烁晶体材料选型及结构优化提供新的研究思路。

关键词: 金属卤化物钙钛矿单晶; 闪烁体; 辐射探测; 结构种类; 光输出; 能量分辨率; 衰减时间

Abstract: Scintillators are materials that emit light upon excitation by particle radiation or ionizing rays. After more than a century of development, they have been widely applied in fields such as high-energy physics, astrophysics, radiation imaging, and homeland security. Most commercially available scintillator detector materials, such as NaI∶Tl and LaBr3∶Ce, are ion-doped luminescent scintillators. These materials suffer from drawbacks including hygroscopicity, self-radioactive background, and high brittleness, which increasingly fail to meet the demands of complex radiation detection applications. Metal halide perovskite scintillation materials, leveraging their structural tunability and chemical composition diversity, demonstrate superior performance compared to traditional inorganic scintillators. Particularly, their single crystals exhibit advantages including three-dimensional long-range order, absence of grain boundaries, low defect density, excellent environmental stability, and low cost, positioning them as one of the most competitive scintillator materials in recent years. This article comprehensively summarizes the research progress of metal halide perovskite scintillator single crystals in radiation detection from perspectives of molecular structure, material classification, and radiation characteristics. It also provides an outlook on potential optimization directions in this field, aiming to enhance readers' comprehensive understanding of these materials, and address challenges in selecting and structurally optimizing novel scintillator crystals.

Key words: metal halide perovskite single crystal; scintillator; radiation detection; structure type; light yield; energy resolution; decay time

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