上转换发光和热敏性质的NaGd(PO3) 4:Yb3+/Er3的属性
Jintao Xu1, Shanlin Zhu1, Canyuan Liao1
1School of Materials, Sun Yat-Sen University, Shenzhen, 518107, China.
Heliyon
|November 18, 2024
概括
这项研究开发了与伊特 (Yb3+) 和埃尔 (Er3+) 合的新型NaGd(PO3) 4,用于高度敏感的光学温度传感. 这些材料在广泛的温度范围内表现出卓越的性能,显示了先进的热传感应用的巨大潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 光学物理学 光学物理学
- 固态化学 固态化学
背景情况:
- 高灵敏度的光学温度测量对于基础研究和实际应用至关重要.
- 上转换 (UC) 发光材料为非接触温度计提供了独特的优势.
研究的目的:
- 为了合成和描述用于光学温度计的Yb3+和Er3+合的新型NaGd(PO3) 4 (NGP) .
- 用光强度比 (FIR) 方法评估这些光体的温度传感能力.
主要方法:
- 在高温固态合成NGP:Yb/Er.
- 用瑞特维尔德精细化进行X射线衍射,用于结构分析和剂分布.
- 在980nm激光激发下进行光学光谱学,以测量上转换发光和FIR.
主要成果:
- 合成的NGP:Yb/Er体表现出特有的Er3+上转化绿色和红色排放.
- 光强度比 (FIR) 方法证明了在200-573 K的范围内有效的热传感.
- 最大绝对热敏度达到0.53%K-1,相对热敏度达到2.60%K-1在523K.
- 作为热传感器具有很高的重复性 (97%).
结论:
- NaGd(PO3)4:Yb/Er是高灵敏度,非接触式光学温度传感的有希望的材料.
- 开发的体具有出色的热灵敏度和可重复性,适合各种应用.
- 进一步的研究可以探索对更广泛的温度范围和特定应用环境的优化.
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