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优秀的发光热稳定性 Dy3+/Sm3+ 协同激活多功能泰坦酸单相光体
Feiyan Xie1, Junqiang Gu2, Jiao Zou1
1School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China. xfy@hzu.edu.cn.
Dalton transactions (Cambridge, England : 2003)
|September 10, 2024
概括
新的多功能体 (NaYTiO4:Dy3+,Sm3+) 显示出优异的热稳定性,用于光学温度计和白色LED照明. 这些材料具有可调色色发射和可靠的温度传感能力.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 发光的阴影是什么意思
背景情况:
- 开发具有高热稳定的是先进应用的关键.
- (Dy3+) 和 (Sm3+) 离子以它们的发光特性而闻名.
- NaYTiO4是的有希望的宿主材料.
研究的目的:
- 为了合成和表征Dy3+/Sm3+联合激活的NaYTiO4.
- 为了研究它们的光发光特性,热稳定性和温度传感能力.
- 评估它们在非接触式光学温度计和白色LED照明方面的潜力.
主要方法:
- 晶体结构,元素组成,光学带隙和光发光特性被系统地研究.
- 同兴奋机制被确定为颜色控制发射的原因.
- 热灭性能被评估为高达475K.
- 光强度比 (FIR) 技术用于温度传感评估.
主要成果:
- 通过同刺激,NaYTiO4:Dy3+,Sm3+体表现出可调节的辐射,从黄色到色红色和白色.
- 证明了出色的热稳定性,光发强度在475K时保持96.75%
- 使用基于差异发光衰变的FIR技术实现了有效的温度传感.
- 光体显示出适用于室内健康照明的白色LED.
结论:
- Dy3+/Sm3+联合激活的NaYTiO4光体是具有优异热稳定的多功能材料.
- 这些光体适用于非接触式光学温度计,因为它们的温度依赖的发光效应.
- 开发的光体显示出在白色LED固态照明和室内健康照明中应用的巨大潜力.
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