基于光学温度计和白色LED照明Tm-Dy系统的高效能量传输的可调色发光
Qi Xiao1, Xingyu Wu1, Na Zhou1
1School of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, P. R. China. luoxixiandl@dlnu.edu.cn.
Dalton transactions (Cambridge, England : 2003)
|October 9, 2023
概括
基于K3Y(PO4) 2的新光体,添加了异 (Dy3+) 和 (Tm3+) 离子,为白色LED和光学温度计表现出可调节的发光. 这些材料显示了增强的温度传感能力.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 发光的光度是非常的低.
背景情况:
- 开发具有可调节发光的光器,包括白光,对于先进的照明和显示技术至关重要.
- 酸酸 (K3Y(PO4) 2) 被探索为用稀土离子进行兴奋剂的宿主材料.
研究的目的:
- 为了合成和表征Dy3+和Tm3+合的K3Y(PO4) 2.
- 为了实现可调色的发光,包括白色辐射,用于照明应用.
- 为了研究使用这些光体的光学温度计的潜力.
主要方法:
- 合成的固态反应方法.
- 在359nm激发下进行光发光谱学.
- 发光衰变曲线分析以研究能量转移.
- 在不同温度下进行光学温度计测量.
主要成果:
- 合成的K3Y(PO4)2:Dy3+,Tm3+光体表现出可调节的蓝色到黄色的发光,包括白色的发光.
- 证实了从Tm3+到Dy3+的高效能量传输.
- 观察到Dy3+排放的异常热增强.
- 在光学温度计中,获得了4.8 × 10^-3 K^-1的最大灵敏度.
- 在白色发光二极管 (LED) 应用中展示了潜在的潜力.
结论:
- K3Y(PO4)2:Dy3+,Tm3+提供了有前途的色调和白光发射性能.
- 这些材料在高温光学温度计方面表现出色.
- 这些体代表了下一代照明和显示技术的可行候选者.
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