荧光粉
光通量
材料科学
激光器
光电子学
二极管
热稳定性
量子效率
发光
固态照明
热导率
发光效率
绿灯
发光强度
激光二极管
光学
发光二极管
蓝光
复合材料
化学
光源
有机化学
图层(电子)
物理
作者
Jiangdan Zhang,Haisheng Yang,Yujie Zhang,Hongmei Liu,Yaqian Zhang,Yueyuan Liang,Huan Li,Bo Ma,Xiaojuan Liang,Weidong Xiang
摘要
All inorganic remote Ce3+:Y3Al3.5Ga1.5O12 (Ce:YAGG) phosphor-in-glass (PIG) is considered to be an ideal robust green-emitting light converter for high-quality laser diode applications. Herein, the preparation of Ce:YAGG PIGs using an economical solid state reaction is reported. The sintered composite materials have the advantages of yielding a high transparency of 53% in the visible region and a high internal quantum efficiency of 92.7%. Benefiting from remarkably superior thermal properties, a high thermal conductivity of 1.712 W m−1 K−1 and a high thermal stability that the luminescence intensity could maintain 91.6% at 503 K, and the PIG can withstand 3.49 W/mm2 blue laser radiation. When pumped by blue laser diodes and by controlling the phosphor content and a thickness of samples, the robust PIG materials produce green light with a luminous flux of 555.6 lm and a stable luminous efficiency of 254.5 lm/W as the blue laser density increasing up to 2.78 W/mm2. The above outstanding performance of Ce:YAGG PIGs indicates a strong perspective for future lighting source.
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