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蓝色可激发的色-红色发射M3Y(PO4)3:Pr3+ (M = Ba,Sr,Ca) 体用于多功能应用
Optics express
|November 14, 2024
概括
新的Pr3+-doped光体显示出对照明和光学温度传感的承诺. 优化基材料表现出增强的热稳定性和高效的白光发射,推进发光材料的应用.
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:
- 多功能发光材料对于光学传感,防伪和照明至关重要.
- 使用Pr3+的M3Y(PO4) 3的光素因其独特的光学特性而受到探索.
研究的目的:
- 为了合成和光谱学研究Pr3+-doped M3Y(PO4) 3 (M = Ba, Sr, Ca) .
- 调查它们在照明和光学温度传感应用中的潜力.
- 了解土金属对发光的影响.
主要方法:
- 合成的M3Y(PO4)3:Pr3+的.
- 密度函数理论计算.
- 扩散反射和光发光谱学 (稳定状态和动态).
- 白色发光二极管 (WLED) 的制造.
- 光学温度计测量. 光学温度计测量.
主要成果:
- 在蓝光激发 (445 nm) 下,Pr3+-doped M3Y(PO4) 3 体表现出高效的色红色发射 (~602 nm).
- 随着Ba2+被Sr2+和Ca2+所替代,发光强度就会增加.
- 优化Ca3Y(PO4) 3:0.7%Pr3+显示出优异的热稳定性 (89%在423K) 并被用于WLED,具有改进的颜色坐标和相关的颜色温度 (~4838K).
- 光学温度计证明了从298K到598K的高相对灵敏度 (~0.87%K-1在298K) 的有效运行,基于Pr3+的热合能量水平.
结论:
- 这项研究系统地阐明了土金属对Pr3+化M的发光特性的影响.
- 开发的Ca3Y(PO4) 3:Pr3+是一种先进的WLED和非接触式光学温度计的有希望的候选物.
- 这些发现有助于开发新的Pr3+-doped发光材料和相关的光电设备.
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