无机应力发光材料的发光特性、发光机理及应用研究进展

Advances in Luminescence Characteristics,Luminescence Mechanisms and Applications of Inorganic Mechanoluminescent Materials

能在机械刺激下发光的材料可称为应力发光材料,应力发光属于一种力学-光子转换过程。在17世纪初首次观测到应力发光现象,但直至20世纪末,SrAl2O4∶Eu2+和ZnS∶Mn2+应力发光材料的出现以及其在应力传感领域巨大的应用前景才重新引起了研究者对应力发光材料的广泛关注。近二十多年来,随着人们对应力发光的深入认识以及对应力发光性能提升方法的逐步掌控,应力发光材料得到了快速发展,并在防伪加密、应力传感、疾病监测、照明显示、应力记录等领域展示出巨大的应用潜力。本文围绕应力发光材料的发展与研究现状,对应力发光材料的分类、发光特性、发光机理和应用领域进行了梳理和总结,提出了当下面临的瓶颈问题以及未来可能的研究方向,旨在为新型实用应力发光材料的开发提供有益的启示。

Materials that can emit light under mechanical stimulation can be called mechanoluminescent(ML)ma-terials,and mechanoluminescence(ML)belongs to a mechanical-photonic conversion process.ML phenomenon was first observed in the early 17th century.However,it was not until the end of the 20th century that the emergence of SrAl2O4∶Eu2+and ZnS∶Mn2+ML materials and their excellent application prospects in the field of stress sensing at-tracted the attention of researchers again.In the past two decades,with the in-depth understanding of ML and the gradual mastery of ML performance enhancement methods,ML materials have been developed rapidly and have shown great potential for applications in the fields of anti-counterfeit encryption,stress sensing,disease monitoring,illumination display,and stress recording,etc.This paper focuses on the development and research status,and sum-marizes the classification,luminescence characteristics,luminescence mechanisms and application fields of ML ma-terials.The current bottleneck problems and possible future research directions are proposed,aiming to provide use-ful inspiration for the development of new practical ML materials.