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Updated: Jun 14, 2025

Low-energy Cathodoluminescence for OxyNitride Phosphors

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结构和EuF₃和SrF₂的发光特性:Eu纳米粒子在"甲-"中微波等离子体火后

I A Tiazhelov^1,2, V S Sedov¹, A K Martyanov¹

¹Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str, 38, 119991 Moscow, Russia. kouznetzovsv@gmail.com.

Dalton transactions (Cambridge, England : 2003)

|August 29, 2024

概括

在模拟钻石生长条件下研究发光EuF3和SrF2:Eu粉末,发现基板将Eu3+降低到Eu2+. 这允许调整X射线探测器的发光.

科学领域:

材料科学材料科学材料科学
发光的阴影是什么意思
钻石合成钻石合成

背景情况:

目前正在开发以钻石为基础的闪光器,集成稀土发光粒子.
化学蒸气沉积 (CVD) 的生长条件可以降解发光粒子,降低发光强度.

研究的目的:

在模拟的多晶钻石生长条件下,研究热对发光EuF3和SrF2:Eu粉末的作用.
了解欧离子的还原机制及其对发光的影响.

主要方法:

在微波等离子中在和钻石基板上对EuF3和SrF2:Eu粉末进行热.
分析发光光谱,以确定欧氧化状态的变化.
在600°C的纯中进行等离子体回火.

主要成果:

基板起到还原剂的作用,将三价欧 (Eu3+) 转化为双价欧 (Eu2+).
与相比,钻石基板上的化显示了较慢的减少率.
发光光谱表现出Eu2+和Eu3+两种频段,使得可调节的发光.
在纯等离子体中化过程中观察到粒子的强烈化.

结论:

这些发现允许针对X射线探测器和可视化器的钻石复合材料中的欧发光光谱进行定位.
在中进行等离子回火,为制造金属化物提供了一种有前途的方法.

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