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在Pr³⁺-dopedBi₄(SiO₄)₃光上发光,用于广泛的高温发光温度计

Xiaoshan Zhang, Zheyu Ni, Mengru Zhao

|August 29, 2025

概括

研究人员开发了新的Pr³⁺-doped Bi₄(SiO₄) ₃ (BSO) 光剂,用于先进的光温度计. 这些材料具有高灵敏度和广泛的温度范围,用于非接触温度测量.

科学领域:

材料科学
光学温度计
发光材料

背景情况:

非接触式光学温度计对于精确的温度测量至关重要,因为它们的非侵入性,高灵敏度和快速响应.
开发先进的光剂是提高光温度计性能的关键,特别是在高温应用中.

研究的目的:

合成和描述一种新型的Pr³⁺-doped Bi₄(SiO₄) ₃ (BSO) .
在广泛的温度范围内研究这些光剂的光比度测量潜力.
为了阐明能量转移机制负责的温度特性.

主要方法:

合成Pr³⁺的Bi₄(SiO₄) ₃ (BSO) .
光发光性质的表征
对温度依赖的辐射光谱和强度比的分析.
研究BSO宿主与Pr3+离子之间的能量传递机制.

主要成果:

开发的BSO:Pr3+体在298K时具有3.54%K-1的最大相对灵敏度 (Sr).
在298-468K的温度范围内观察到持续的Sr值高于1.59%K.
由温度刺激的能量从BSO宿主转移到Pr³⁺离子被证实,显著提高Pr³⁺的发射强度,并减少宿主发射强度随着温度的增加.

结论:

用Pr3+合的BSO体代表了先进的光比度测量材料的有前途的新类.
观察到的温度刺激的能量传递机制使得大范围的高温传感能力成为可能.
这些发现为开发高效的发光温度计铺平了道路.

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