三价欧的光学温度感应特性在广泛的温度范围内具有很高的灵敏度
Chen Zhuang1, Jia Zhang1, Cheng Jiang1
1Physics Department and Jiangsu Key Laboratory of Modern Measurement Technology and Intelligence, Huaiyin Normal University, 111 West Chang Jiang Road, Huai'an 223300, China.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
|September 3, 2023
概括
新的欧激活酸氧化 (BaY2ZnO5:Eu3+) 光体显示出作为光学温度计的前景. 这些材料表现出温度依赖的发光,使敏感的,非接触温度测量高达533K.
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:
- 光学温度计需要新的发光材料来进行精确的,非接触温度测量.
- 欧 (Eu3+) 离子以其独特的发光特性而闻名,使其成为传感应用中合适的剂.
研究的目的:
- 设计和合成用于光学温度计的新型Eu3+激活BaY2ZnO5 (BYZ) .
- 为了研究这些光体的取决于温度的发光特性.
- 为了评估它们作为光学温度传感器的性能.
主要方法:
- 合成Eu3+激活的BaY2ZnO5.
- 在394nm激发下进行光发光谱学.
- 温度依赖的排放光谱和短暂衰变动力学测量.
- 分析光强度比率 (FIR) 使用博尔兹曼分布和碎片函数.
主要成果:
- BaY2ZnO5:Eu3+体表现出特有的Eu3+排放过渡,其主要峰值在625nm.
- 发光强度随着温度的增加而下降,根据Eu3+兴奋状态的不同速度.
- 光学温度传感显示出高灵敏度,达到0.674K-1 (绝对) 和2.19%K-1 (相对) 在533K的BYZ:7%Eu3+.
结论:
- 开发的BaY2ZnO5:Eu3+光剂对于光学温度计是有效的.
- 这些材料在更高的温度下表现出增强的灵敏度,使它们适合用于高温应用.
- 这些光体为先进的发光温度传感提供了一个有前途的途径.
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