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光谱仪等级 CsPbBr 的极端 γ-射线辐射耐受性

Michael C De Siena¹, Vladislav V Klepov^1,2, Sergei P Stepanoff^3,4

¹Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA.

Advanced materials (Deerfield Beach, Fla.)

|June 7, 2023

概括

化 (CsPbBr3) 作为室温半导体辐射探测器,即使在高辐射剂量下,也显示出出色的稳定性. 它作为CZT具有成本效益的替代品的潜力被最小的性能退化所突出.

科学领域:

材料科学材料科学材料科学
核仪器仪表核仪器仪表核仪器仪表
固态物理固态物理

背景情况:

化 (CsPbBr3) 是一种矿材料,具有辐射检测的潜力.
目前的基准材料,如 Telluride (CZT) 是昂贵的和难以制造的.
工业和太空应用需要能够承受恶劣条件的辐射探测器.

研究的目的:

为了评估CsPbBr3辐射探测器在高辐射剂量下的性能和稳定性.
将CsPbBr3与现有的辐射检测技术 (如CZT) 进行比较.
在压力下识别CsPbBr3探测器的潜在故障机制.

主要方法:

对CsPbBr3传感器暴露于不同剂量的Co-60马辐射 (1Mrad和10Mrad).
检测器性能指标的评估,包括能量分辨率,孔移动性和载体寿命.
对设备功能和辐射后故障模式的分析.

主要成果:

在暴露于1Mrad的马辐射后,CsPbBr3探测器表现出最小的性能退化.
能量分辨率,孔移动性和寿命基本保持不变.
许多设备在10Mrad暴露后仍然具有功能,而非功能性设备是可重制的.

结论:

CsPbBr3具有很高的辐射耐受性,因此适用于苛刻的应用.
设备故障似乎与电极材料接口有关,而不是CsPbBr3材料本身.
在恶劣的环境中,CsPbBr3为可靠的辐射检测提供了一个有希望的,具有成本效益的替代方案.

关键词:

佩洛夫斯基特石是如何形成的光导电性的光导性辐射损伤辐射损伤半导体检测器半导体检测器

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