激光激发Ce:YAG单晶与陶瓷的发光性能

发布时间：2018-01-07 18:32

本文关键词：激光激发Ce:YAG单晶与陶瓷的发光性能　出处：《中国激光》2017年10期 　论文类型：期刊论文

【摘要】：制备了不同Ce~(3+)掺杂浓度(摩尔分数)的钇铝石榴石(YAG)单晶和陶瓷,并对激光激发Ce:YAG单晶和陶瓷的光通量、光电转换效率、显色指数及色温进行了研究。在电流为2.6A的激光激发下,Ce~(3+)掺杂浓度为0.3%的陶瓷的光通量最高,为617.2lm;Ce~(3+)掺杂浓度为0.5%的单晶的显色指数较高,为62,色温为5841K。在功率为2.61 W、材料中心功率密度达10.8 W·mm-2的激光激发下,Ce:YAG单晶和陶瓷的光转换均未达到饱和,对应的光-光转换效率均约为240lm·W-1。实验结果表明,在高功率密度激光激发下,陶瓷和单晶均适用于产生高亮度白光。
[Abstract]:Different Ce~ were prepared (3+) doping concentration (mole fraction) of yttrium aluminum garnet (YAG) single crystal and ceramic, and the luminous flux of the laser excitation of Ce:YAG single crystal and ceramics, photoelectric conversion efficiency, color index and color temperature were studied. The excitation laser 2.6A in current Ce~ (3+) doped the concentration of 0.3% ceramic flux is the highest, 617.2lm; Ce~ (3+) color index is high, the crystal doping concentration is 0.5% to 62, the color temperature is 5841K. in the power of 2.61 W laser excitation material center power density of 10.8 W - mm-2, light conversion of Ce:YAG single crystal and ceramic are not saturated, the corresponding light light conversion efficiency is about 240lm and W-1.. The experimental results show that the excitation at high power density laser, ceramics and single crystals are suitable to produce high brightness white light.

【作者单位】：中国科学院上海光学精密机械研究所高功率激光单元研发中心;中国科学院大学;昆山开威电子有限公司;上海铁路局杭州北车辆段;
【分类号】：TN244
【正文快照】： 3昆山开威电子有限公司,江苏苏州215345;4上海铁路局杭州北车辆段,浙江杭州3111001003001-1目前,白光发光二极管(LED)主要通过蓝光LED芯片配合硅胶混合荧光粉实现[1],利用该种方式封装的白光LED由于具有寿命长、易封装、光电转换效率高的特点,被广泛应用于路灯、工厂照明、家

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