闪光和光发光的比度和视觉发光温度测量基于Ce3+-Doped欧特克结构
Karol Bartosiewicz1, Maja Szymczak2, Masao Yoshino3
1Institute of Physics, Czech Academy of Sciences, Na Slovance 1999/2, Praha 18200, Czechia.
ACS applied materials & interfaces
|October 15, 2025
概括
使用添加YAG-YAP晶体的新型双相材料提供可调节的白光和先进的热传感. 这些多功能材料能够在极端环境中被动监测温度.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 发光的光度是非常的低.
背景情况:
- 开发用于先进传感应用的多功能材料至关重要.
- 添加石榴石 (YAG) 和矿 (YAP) 以其发光特性而闻名.
- 定制材料微观结构可以显著影响光学和传感特征.
研究的目的:
- 开发一种新型的双相,多功能光转换和热传感材料.
- 研究固化速率对Ce3+兴奋剂YAG-YAP欧特基的微观结构和特性的影响.
- 探索双模式热传感能力并优化灵敏度.
主要方法:
- 通过可变速率 (0.1-0.9毫米/分钟) 的定向固化合成Ce3+-doped YAG-YAP欧特基晶体.
- 使用技术来确定相位形态和剂分布的结构和组成分析.
- 在光发光 (PL) 和X射线诱导的闪光激发下进行比度度发光温度测量,以评估热传感性能.
主要成果:
- 实现了YAG和YAP域的层状微观结构,Ce3+优先划分为YAG阶段.
- 固化速率控制域大小,影响蓝光传输,散射和吸收,使可调色相关色温 (CCT) 成为可能.
- 证明了双模式的热传感,与PL (0.47%K-1) 相比,在闪光激发下获得的灵敏度更高 (1.1%K-1).
结论:
- 用Ce3+合的YAG-YAP欧特克为白光发射提供了形态驱动的光学可调性.
- 基于闪的热传感提供了被动的远程温度监测功能,非常适合极端环境.
- 这些多功能材料在核反应堆,航空航天和粒子检测中的应用方面显示出显著的前景.
相关概念视频
Photoluminescence: Applications
1.0K
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
1.0K
Photoluminescence: Fluorescence and Phosphorescence
3.5K
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
A pair of electrons in a...
3.5K


