无机材料学报2022，Vol.37Issue(8)：891-896,中插2-中插3,8.DOI:10.15541/jim20220074
第二相引入荧光转换材料实现激光驱动高均匀性白光光源
Achieving High Light Uniformity Laser-driven White Lighting Source by Introducing Secondary Phases in Phosphor Converters
摘要
Abstract
Laser-driven white lighting sources have great potential for applications with super-high brightness, high directionality and long distance illumination, but are usually limited by their poor uniformity due to mismatch between blue laser light and phosphor converted light. In this work, a secondary phase of TiO2, BN, Al2O3 or SiO2 was introduced as scattering media in the Y3Al5O12 : Ce3+ (YAG) phosphor-in-glass (PiG) film to regulate the light path, where the optimum concentration of the secondary phase was determined, respectively. The images of illumination and speckle, angular distributions of luminance and color temperature, as well as optical properties of the white light produced by the different secondary phases based-YAG PiG films were investigated. The light uniformity in luminance and color temperature is greatly improved by introducing secondary phases, among which TiO2 is demonstrated as the best one as it has the largest relative reflective index. In addition, the YAG-TiO2 PiG film has the largest luminance saturation threshold of 20.12 W/mm2 and the highest luminous flux of 1056.6 lm under blue laser irradiation. This work paves an avenue to choose appropriate scattering media in PiG films for realizing more uniform and brighter laser-driven white lighting source.关键词
光均匀性/激光驱动白光光源/光散射/荧光玻璃薄膜/光学性质Key words
light uniformity/laser-driven white lighting source/scattering/phosphor-in-glass film/optical properties分类
数理科学引用本文复制引用
邓陶丽,陈河莘,黑玲丽,李淑星,解荣军..第二相引入荧光转换材料实现激光驱动高均匀性白光光源[J].无机材料学报,2022,37(8):891-896,中插2-中插3,8.基金项目
National Natural Science Foundation of China(51832005,U2005213) （51832005,U2005213）
Fujian Provincial Science and Technology Project(2020I0002) （2020I0002）
