期刊
CRYSTENGCOMM
卷 21, 期 31, 页码 4545-4550出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ce00703b
关键词
-
资金
- National Natural Science Foundation of China [61621001]
A series of Ce-doped YAG-Al2O3 eutectics were grown by the micro-pulling-down (mu-PD) method, for the purpose of high power white light emitting diodes. The eutectic structure was investigated. A calibrated integrating sphere spectrometer setup was used to measure the white LED properties of eutectic samples. The CIE color coordinates can be regulated easily by altering the Ce3+ doping concentration and sample thickness of the Ce:YAG-Al2O3 eutectics. A 1 W white LED device based on Ce:YAG-Al2O3 eutectics at a rated current of 350 mA emitted a bright white light with a CIE coordinate of (0.319, 0.334), a luminous efficacy of 83.0 lm W-1 and a D-uv value of 0.003. The results showed that Ce:YAG-Al2O3 eutectics have better luminescence properties than commercial powder phosphors at a high current density.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据