Ce:GdYAG phosphor-in-glass:An innovative yellow-emitting color converter for solid-state laser lighting  

作　　者：Luhan Wang Jiangdan Zhang Li Xu Shuyang Bao Yu Wang Jiawei Liu Xiaojuan Liang Weidong Xiang 

机构地区：[1]College of Chemistry and Materials Engineering,Wenzhou University,Wenzhou 325035,China [2]College of Life and Environmental Science,Wenzhou University,Wenzhou 325035,China

出　　处：《Journal of Materials Science & Technology》2023年第3期42-49,共8页材料科学技术（英文版）

基　　金：supported by the Key Research and Development Project in Zhejiang Province(No.2021C01024).

摘　　要：Stable,efficient and high color rendering index all-inorganic color converters are urgently demanded for white laser diodes.Phosphor-in-glass(PiG),possessing the advantages of phosphors excellent quantum efficiency as well as favorable chemical and thermal stability of glass,has attracted widespread attention.There have been only very few reports of Y_(1.31)Ce_(0.09)Gd_(1.6)Al_(5)O_(12)(Ce:GdYAG)PiG for solid-state laser light-ing.Herein,a series of Ce:GdYAG PiG samples are fabricated by a simple solid-state sintering method.Impressively,the supreme internal quantum efficiency of as-prepared PiG is 91%,which is very close to original phosphors(95%).Furthermore,PiG exhibits a high thermal conductivity(1.844 W m^(−1)K^(−1))and a maximum transparency(62%).Remarkably,by changing the concentration of phosphors and the thickness of PiG samples,a luminous efficacy of 163.5 lm/W,high color rendering index of 74.8 and low correlated color temperature of 4806.8 K are achieved under blue laser irradiation.These results indicate that the Ce:GdYAG PiG samples have shown tremendous application foreground as all-inorganic color converter for solid-state laser lighting.

关 键 词：Ce:GdYAG Phosphor-in-glass Solid-state laser lighting Optical performance 

分 类 号：TG665[金属学及工艺—金属切削加工及机床]