Design of a luminescence pattern via altering the crystal structure and doping ions to create warm white LEDs.
Presently considerable interest in phosphor-converted warm LEDs which meet the stringent requirements of general illumination is stimulated. Here we report warm white LEDs made by altering the crystal structure and doping ions, which can govern the luminescence pattern to modulate the correlated color temperature and color-rendering index.
State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. hpyou@ciac.jl.cn.
Wei
W
Lü
Yongchao
Y
Jia
Qi
Q
Zhao
Wenzhen
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Lv
Hongpeng
H
You