在 terbium (III) 激活的酸双矿中发光和剂量方法
Naresh Degda1, Nimesh Patel1, Vishwnath Verma1
1Luminescence Materials Laboratory, Department of Physics, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, India.
Luminescence : the journal of biological and chemical luminescence
|November 11, 2023
概括
用terbium (Tb3+) 合的状双矿显示出强烈的绿色光发光,用于照明和线性热发光响应,用于β射线剂量测量.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 发光的光度是非常的低.
背景情况:
- 酸双矿是用于光学和剂量测量应用的有希望的材料.
- (Tb3+) 兴奋剂可以诱导理想的发光特性.
研究的目的:
- 为了合成和描述与Tb3+合的Ca3和WO6的特征.
- 为了研究这些光体的光发光 (PL) 和热发光 (TL) 特性.
- 为了评估它们在照明和热发光剂量测量方面的潜力.
主要方法:
- 使用尿素作为流体进行燃烧合成.
- 用X射线衍射 (XRD) 来识别晶体结构.
- 福里埃变换红外光谱 (FTIR) 用于振动分析.
- 在UV激发下进行光发光 (PL) 光谱学.
- 在β辐射后的热发光 (TL) 测量.
主要成果:
- Ca3WO6:Tb3+的单临床晶体结构由XRD证实.
- 在278nm激发下观察到强烈的绿色下转换发射,归因于Tb3+ 5 D4 → 7 FJ 转换.
- 发现Tb3+的最佳兴奋剂度为1mol%,在更高度下火.
- 检测到高质量的热发光 (TL),显示对β剂量的线性反应.
- 计算了陷参数,并评估了色效应.
结论:
- Ca3WO6:Tb3+光体表现出极好的光发光特性,适合用于照明应用.
- 这些材料显示出热发光剂量计的潜力,因为它们对β辐射的线性反应和良好的TL特性.
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