Transparent Ce:Y3Al5O12 ceramic phosphors for white light-emitting diodes

被引：174

作者：

Wei, Nian ^{[1
,2
]}

Lu, Tiecheng ^{[1
,2
,3
]}

Li, Feng ^{[1
,2
]}

Zhang, Wei ^{[1
,2
]}

Ma, Benyuan ^{[1
,2
]}

Lu, Zhongwen ^{[1
,2
]}

Qi, Jianqi ^{[1
,2
]}

机构：

[1] Sichuan Univ, Dept Phys, Minist Educ, Chengdu 610064, Peoples R China

[2] Sichuan Univ, Key Lab Radiat Phys & Technol, Minist Educ, Chengdu 610064, Peoples R China

[3] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110015, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 06期

关键词：

OPTICAL-PROPERTIES; LUMINESCENCE; EMISSION; COLOR;

D O I：

10.1063/1.4742896

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present our recent achievement of a transparent ceramic able to produce white light when directly combined with commercially available blue light emitting diodes. The photoluminescence properties of ceramic phosphor (Y1-xCex)(3)Al5O12 are studied as a function of doping fraction (x = 0.0005-0.0020). The emission color is tunable by variations of Ce3+ concentration and ceramic phosphor thickness. A maximum luminous efficacy exceeding 93 lm/W at a low correlated color temperature of similar to 4600 K is obtained, which is superior to samples made from commercial phosphor powders. Hence, the present transparent ceramic phosphor is expected to be an ideal candidate for generating white light. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4742896]

引用

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