材料科学
荧光粉
光电子学
激光器
基质(水族馆)
光通量
亮度
图层(电子)
光学
复合数
发光
转换器
热导率
复合材料
功率(物理)
光源
海洋学
物理
量子力学
地质学
作者
Qianxiong Wen,Cong Zhao,Ming Fu,Yusai Xu,Xiangjia Sun,Jiaying Zheng,Yongri Liang,Xiaojuan Liang,Xiaojuan Liang,Zhaoping Chen
标识
DOI:10.1016/j.jre.2023.09.022
摘要
Phosphor-in-glass (PiG) has been prepared into various types of phosphor films owing to its simplicity process, exceptional color purity, and convenient color adjustability. Nevertheless, existing reflective PiGs films have encountered limitations in terms of stability and feasibility as reliable color converters, mainly attributed to issues related to thermal deposition and insufficient optical efficiency. Herein, we propose to use AlN substrate with superior thermal conductivity to coat the TiO2 layer to obtain TiO2–AlN (TA), which enhances the reflectivity of blue light to facilitate the light conversion process. By incorporating highly thermally stable LuAG:Ce-PiGs on a TA substrate, the LuAG:Ce-PiTA converter exhibits a luminous flux of 1102 [email protected] W, and maintains a relative intensity of 94.6% at 473 K benefiting from the high thermal conductivity of 34.1 W/(m·K). The addition of CASN3:Eu to the color converter 50 L&10C-PiTA enables an impressive CRI of 90.7. Relative luminescence intensities of LuAG:Ce-PiTA and 50 L&10C-PiTA only decrease by 5.35% and 3.28%, respectively, in the 24 h illumination aging decay test of the reflective laser module. The results confirm the suitability of the optimally designed TA substrate for LuAG:Ce color converter applications in high-power reflective laser illumination.
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