基于结构阶段过渡的热传感和成像发光平台
Anam Javaid1, Maja Szymczak1, Malgorzata Kubicka1
1Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, Wrocław, 50-422, Poland.
概括
用欧添加的酸和酸具有可调节的发光,用于先进的无接触温度传感. 这种材料可以在没有光学过器的情况下进行新型的热成像,从而扩大了其应用范围.
科学领域:
- 材料科学 材料科学 材料科学
- 发光的光度是非常的低.
- 固态化学 固态化学
背景情况:
- 欧 (Eu3+) 离子发光对其晶体环境很敏感.
- 基于相位转换的发光温度计提供无接触传感,但通常具有有限的操作范围.
- 需要新的宿主材料来克服发光温度计的局限性.
研究的目的:
- 研究Na3Sc2(PO4)3:Eu3+作为发光温度计的宿主材料.
- 探索材料的相变及其对Eu3+发光效应的影响.
- 开发和展示新的温度传感和成像能力.
主要方法:
- 合成的Na3Sc2(PO4)3与不同度的Eu3+相合.
- 作为温度的函数,描述了发光特性 (发射光谱,衰变时间).
- 研究了从单临床到三角的结构阶段过渡.
- 使用没有光学过器的数码相机展示了温度成像.
主要成果:
- Na3Sc2(PO4)3:Eu3+表现出可逆的单临床-三角形相位过渡.
- 阶段过渡显著改变了Eu3+发射光谱和发光衰变.
- 获得了3.4%K-1 (比率) 和1.0%K-1 (基于寿命) 的最大相对灵敏度.
- 通过调整Eu3+度来调整热操作范围.
- 通过Eu3+发光成功演示了使用Eu3+发光的无镜温度成像.
结论:
- Na3Sc2(PO4)3:Eu3+是一个有前途的多功能材料用于发光温度计.
- 该材料的调节性质和成像能力有利于无接触式温度传感.
- 这项工作开创了无镜热成像技术,使用单一的Eu3+合.
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