温度是最基本的物理量之一,它的准确测量在科学研究和技术应用等领域具有十分重要的意义。基于物质光学响应特性的温度探测是一种新型的测温技术,可以克服传统温度计内在的不足,满足非接触式、高分辨率、快速响应等探测需求。围绕着可用于温度传感的固体发光材料展开,从基于荧光强度、荧光强度比和荧光寿命这三类不同的温度探测方式出发,详细介绍了关于温度探测的工作所取得的成果和进展,讨论了它们作为测温材料的温度区间以及相对灵敏度,归纳总结了各自的优缺点,并对其发展前景进行了展望。
Temperature is one of the most basic parameters in various fields, and the accurate and reliable measurement of temperature is essential. A novel temperature measurement method based on the optical properties of the luminescent materials has garnered a lot of attention, for it can satisfy the measurement requirements of noncontact, high resolution and fast response. This article reviewed several different mechanisms for temperature sensing, which based on fluorescence intensity, fluorescence intensity ratio and lifetime, respectively. The temperature-dependent properties of luminescent materials were discussed in detail, as well as the relative sensitivity. Finally, the prospect for temperature sensing based on the optical properties of the luminescent materials was proposed.