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《Chinese Journal of Luminescence》 2015-03
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Effects of Trace Elements Doping on The Long-term Performance of Red Phosphor( Sr,Ca)AlSiN_3∶Eu~(2+) Used for WLED

HE Jin-hua;FU Yi-bing;LIANG Chao;LIU Kai;TENG Xiao-ming;Jiangsu Bree Optronics Co. ,Ltd.;  
In order to overcome the shortcoming of( Sr,Ca) AlSiN3∶ Eu2+red phosphor on the thermal quenching and long term anti-degradation,which results in obvious light efficiency decay and color shift and have adverse impact on the light quality of white LED,in this paper,alkaline earth metal ions and rare earth metal ions are doped into( Sr,Ca) AlSiN3∶ Eu2 +red phosphor and their influence on the thermal quenching and long-term performance are explored. The results show that the doping Li+-Dy3 +,Li+-Ho3 +ion can play important role to promote the anti-degradation performance effectively,and suppress the color shift during long term aging simultaneously.
【CateGory Index】: O482.31
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1 HU Chang-qi,ZHANG Fang-hui,ZHANG Jing(College of Electric and Communication,Shaanxi University of Science and Technology,Xi'an 710021,China);The Spectral and Junction Temperature Properties of New White Light LED[J];Chinese Journal of Luminescence;2012-09
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