具有光磁双模式的稀土金属有机框架,用于超宽范围的非接触式温度传感
Zhizhuo Gu1, Jiaxin Cui1, Liaokuo Gong1
1Chemistry and Chemical Engineering College, Qufu Normal University, Qufu, Shandong 273165, P. R. China.
ACS applied materials & interfaces
|September 17, 2025
概括
研究人员开发了一种新型的化金属有机框架 (Ln-MOF) 温度计,用于精确的非接触式温度传感,从2-483 K. 这种创新的设备利用光和磁力在极端环境中进行准确的测量.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 物理化学 物理化学
背景情况:
- 高灵敏度,非接触式温度计对于微电子和物联网 (IoT) 是至关重要的.
- 现有的温度计在极端温度范围内的准确性和灵敏性方面面临挑战.
- 开发用于超宽温度传感的先进材料仍然是一个重要的技术障碍.
研究的目的:
- 开发一种创新的温度计,在超广的温度范围内精确,非接触式传感温度.
- 为了在单一材料中集成光和磁性,用于双模式温度检测.
- 探索化金属有机框架 (Ln-MOFs) 对极端环境温度计的潜力.
主要方法:
- 制造一种新型的化物金属有机框架 (Ln-MOF) 材料.
- 光和磁性特性的整合用于温度传感.
- 利用低温传感 (2-483 K) 的磁性易感性和高温传感的光 (强度和寿命).
- 运用密度函数理论 (DFT) 计算来理解底层机制.
主要成果:
- 实现了精确的,非接触式的温度传感,跨越 2-483 K 的超宽范围.
- 在整个范围展示了高灵敏度 (9.18%K-1) 和低不确定性 (0.04K).
- 由于Eu3+的兴奋剂和能量转移,观察到与温度相关的排放颜色从绿色转变为红色.
- Ln-MOF表现出极好的热稳定性和传感性能.
结论:
- 开发的基于Ln-MOF的温度计为在极端环境中准确监测温度提供了有前途的解决方案.
- 双模式 (光和磁性) 传感机制可以在超宽温度范围内进行可靠的测量.
- 这项工作为微电子和物联网等领域的先进远程温度传感应用提供了一个新的平台.
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