含TiO2多元系玻璃与玻璃陶瓷及其光电子应用研究进展

Research Progress of Multi-System Glasses and Glass Ceramics Containing TiO 2 and Their Optoelectronic Applications

玻璃和玻璃陶瓷作为一种重要的光功能材料,在显示、照明、闪烁体、激光器和光纤放大器等领域有着重要的应用。二氧化钛(TiO 2)具有高折射率和高介电系数,研究表明,添加TiO 2能够降低玻璃的声子能量、改善稀土离子的发光性能;同时,含TiO 2玻璃陶瓷不仅能够促进稀土离子的发光,而且还能作为一种闪烁体应用于辐射探测领域。概括了含TiO 2玻璃的制备方法,包括高温熔融-淬火法、溶胶-凝胶法以及无容器悬浮技术,其中无容器悬浮技术为高TiO 2含量玻璃的制备提供了新的途径。简要介绍了含TiO 2玻璃和玻璃陶瓷的结构和性能,包括TiO 2的配位、玻璃的声子能量和热学性能等。调研了近几年含TiO 2玻璃和玻璃陶瓷在辐射发光和闪烁发光方面的研究进展。最后,探讨了含TiO 2玻璃和玻璃陶瓷存在的问题和未来的发展趋势,并总结得出了含TiO 2多元系玻璃和玻璃陶瓷有望成为光电子应用新材料的研究热点。

Glasses and glass ceramics,as important optical functional materials,have significant applications in display,lighting,scintillator,laser and optical fiber amplifier.TiO 2 has high refractive index and high dielectric coefficient.Researches show that adding TiO 2 can reduce the phonon energy of the glass and improve the luminescent properties of rare-earth ions,and glass ceramics containing TiO 2 can not only promote the emission of rare-earth ions,but also be applied in the field of radiation detection as a scintillator.This paper summarized the preparation methods of glasses containing TiO 2,including high temperature melt-quenching method,sol-gel method and containerless(levitation)method,and the containerless(levitation)method provides a new way for the preparation of glasses containing high TiO 2 content.The structure and properties of glasses and glass ceramics containing TiO 2,including the coordination of TiO 2,phonon energy and thermal properties of glasses,were briefly introduced.The research progresses of radiant luminescence and scintillation of glasses and glass ceramics containing TiO 2 were investigated in recent years.Finally,the problems and future development trends of glasses and glass ceramics containing TiO 2 were discussed.It is believed that the glasses and glass ceramics containing TiO 2 are expected to become the research hotspot of new materials for optoelectronic applications.