载体陷参数的动力学在Na8Al6Si6O24(Cl,S) 2黑克曼石中
Sung-Hwan Kim1, Seon-Chil Kim2,3
1Department of Radiological Science, Cheongju University, Cheongju 28503, Republic of Korea.
Materials (Basel, Switzerland)
|October 28, 2023
概括
黑曼石是一种暗色材料,显示出UV和X射线检测的潜力. 这项研究使用热发光分析了其电子捕获水平,揭示了传感器应用的关键动态参数.
科学领域:
- 固态物理 固态物理
- 材料科学 材料科学 材料科学
- 发光的光度是非常的低.
背景情况:
- 光材料,如哈克曼石,在暴露于紫外线 (UV) 辐射时呈现颜色变化.
- 这些颜色变化表明在个人紫外线检测和作为X射线视觉传感器的潜在应用.
- 了解底层的发光机制对于优化传感器性能至关重要.
研究的目的:
- 为了研究Na8Al6Si6O24(Cl,S) 2黑克曼石中的电子捕获水平的动力学.
- 为了评估这些捕获水平的物理参数,使用热发光.
- 评估hackmanite在紫外线和X射线检测应用中的潜力.
主要方法:
- 用X射线照射的hackmanite测量了热发光 (TL) 发光曲线.
- 在TL测量过程中采用了5K/s的加热速率.
- 对光曲线的分析使用了解卷,峰形和初始上升方法来确定捕获水平参数.
主要成果:
- 在hackmanite样本中,至少发现了五种不同的电子捕获水平.
- 这些级别的激活能被确定为0.78,1.12,1.86,1.26,以及1.18 eV.
- 相应的峰值陷寿命从1.47到3.91秒不等,估计迁移时间为15.0秒.
结论:
- 该研究成功地描述了hackmanite中的电子捕捉动力学.
- 识别的捕获参数为材料的发光行为提供了洞察力.
- 这些发现支持hackmanite作为UV和X射线检测的敏感材料的潜在使用.
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