柔性钙钛矿X/γ辐射探测材料研发与优选

辐射防护 ›› 2025, Vol. 45 ›› Issue (6): 564-575.

柔性钙钛矿X/γ辐射探测材料研发与优选

王茂林^1,2, 刘新梅³, 石忠焱^1,2, 李昊瑾³, 张静^1,2, 令狐仁静^1,2, 黄健^1,2, 刘鑫^1,2, 刘兆行^1,2, 靳海晶^1,2, 王佳^1,2, 赵日^1,2, 赵奎³

1.中国辐射防护研究院,太原 030006;
2.核药研发转化与精准防护山西省重点实验室,太原 030006;
3.陕西师范大学,西安 710119

收稿日期:2025-05-15 出版日期:2025-11-20 发布日期:2026-01-14
通讯作者: 赵日。E-mail: zhaor.abc@163.com
作者简介:王茂林(1995—),2018年本科毕业于南京农业大学电子信息科学与技术专业,现为中国辐射防护研究院辐射防护与环境保护专业在读硕士研究生。E-mail:1123244560@qq.com

Research and optimization on flexible perovskite X/γ radiation detection materials

WANG Maoling^1,2, LIU Xinmei³, SHI Zhongyan^1,2, LI Haojin³, ZHANG Jing^1,2, LINGHU Renjing^1,2, HUANG Jian^1,2, LIU Xin^1,2, LIU Zhaoxing^1,2, JIN Haijing^1,2, WANG Jia^1,2, ZHAO Ri^1,2, ZHAO Kui³

1. China Institute for Radiation Protection,Taiyuan 030006;
2. Shanxi Provincial Key Laboratory for Translational Nuclear Medicine and Precision Protection, Taiyuan 030006;
3. Shaanxi Normal University, Xi′an 710119

Received:2025-05-15 Online:2025-11-20 Published:2026-01-14

摘要/Abstract

摘要： 传统刚性探测器如闪烁体、半导体等难以满足未来柔性辐射探测应用需求。为此基于新型钙钛矿材料提出新技术路线,将钙钛矿溶液填充至多孔尼龙薄膜柔性基质中,通过重结晶制备出柔性探测材料。对所制备的6种材料进行扫描电子显微镜成像、X射线衍射、紫外吸收光谱以及X射线照射下μτ值、剂量率线性、探测灵敏度测量等测试。在测试结果中优选出最佳材料[NH₃(CH₂)₄NH₃]BiI₅并进一步进行X/γ射线测试,结果表明[NH₃(CH₂)₄NH₃]BiI₅柔性薄膜材料的μτ值为1.30×10^-3 cm²·V^-1、光学带隙为2.02 eV、探测灵敏度为(3 190 ± 50)μC·Gy_air^-1·cm^-2,优于现有半导体探测器且保持了钙钛矿晶体材料固有的优异探测特性。为后续研发柔性辐射探测器和探测系统奠定了基础。

关键词: 柔性探测器, 钙钛矿材料, 薄膜探测器, X/γ探测, 多维度表征

Abstract: Traditional solid detectors such as scintillators and semiconductors are difficult to meet the future requirements for flexible radiation detection applications. Therefore, in this paper, a new technology route is proposed based on novel perovskite materials. The perovskite solution is filled into the flexible matrix of porous nylon film, and the flexible detection materials are prepared through recrystallization. Scanning electron microscopy imaging, X-ray diffraction, ultraviolet absorption spectroscopy, and tests such as μτ value, dose rate linearity, and detection sensitivity under X-ray irradiation are conducted on six prepared materials. The six materials are optimized and further X-ray and γ-ray tests are carried out. The results show that the μτ value of [NH₃(CH₂)₄NH₃]BiI₅ flexible film material is 1.30×10^-3 cm²·V^-1; the optical band gap is 2.02 eV: and the detection sensitivity is (3 190±50)μC·Gy_air^-1·cm^-2, which is superior to existing semiconductor detectors and retains the inherent excellent detection characteristics of perovskite crystal materials. This paper lays an important foundation for the subsequent research and development of flexible radiation detectors and detection systems.

Key words: flexible detector, perovskite materials, film detector, X/γ detection, multi-dimensional characterization

中图分类号:

TL814

王茂林, 刘新梅, 石忠焱, 李昊瑾, 张静, 令狐仁静, 黄健, 刘鑫, 刘兆行, 靳海晶, 王佳, 赵日, 赵奎. 柔性钙钛矿X/γ辐射探测材料研发与优选[J]. 辐射防护, 2025, 45(6): 564-575.

WANG Maoling, LIU Xinmei, SHI Zhongyan, LI Haojin, ZHANG Jing, LINGHU Renjing, HUANG Jian, LIU Xin, LIU Zhaoxing, JIN Haijing, WANG Jia, ZHAO Ri, ZHAO Kui. Research and optimization on flexible perovskite X/γ radiation detection materials[J]. RADIATION PROTECTION, 2025, 45(6): 564-575.

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