复合荧光玻璃的可控制备与光电性能研究

Controllable preparation and photoelectric properties of composite phosphor-in-glass

基于YAG:Ce的荧光转换材料优点在于效率高,缺点在于发光光谱中缺少红光,只能获得低显指、高色温的冷白光。如何开发适合LD光源激发特点的多色荧光玻璃,实现照明光源色彩品质的调谐,是LD照明技术中巨大的挑战之一。通过对基体玻璃组分含量的优化设计,结合低温烧结技术,解决传统高温玻璃对氮化物红粉复合过程中的氧化、腐蚀的关键技术难题,实现了复合荧光玻璃中荧光微晶与玻璃基体晶界的有效调控,有效地防止了CaAlSiN_(3):Eu^(2+)氮化物粉体在烧结过程中氧化腐蚀,开发出高荧光量子效率复合荧光玻璃,开创高品质照明。

The YAG:Ce-based fluorescence conversion material has the advantage of high efficiency,but the disadvantage is the lack of red light in the emission spectrum,and only cold white light with low CRI and high color temperature can be obtained.How to develop multi-color fluorescent glass suitable for the excitation characteristics of LD light source and realize the tuning of the color quality of the lighting source is one of the huge challenges in LD lighting technology.In this work,by optimizing the content of the matrix glass components and combining with low-temperature sintering technology,we solves the key technical problems of oxidation and corrosion of the traditional high-temperature glass to the nitride red po wder compounding process,and realizes the fluorescent crystallites and the glass matrix crystals in the composite fluorescent glass.The effective regulation of the world effectively prevented the CaAlSiN_(3):Eu^(2+)nitride powder from oxidizing and corroding during the sintering process,and developed a high fluorescent quantum efficiency composite fluorescent glass,creating high-quality lighting.