Near-ultraviolet LED of the external quantum efficiency over 45% and its application to high-color rendering phosphor conversation white LEDs

被引：0
|
作者：
Sakuta, Hiroaki [1 ]
Fukui, Takeshi [1 ]
Miyachi, Tsutomu [1 ]
Kamon, Kunihito [2 ]
Hayashi, Hideki [2 ]
Nakamura, Nobutaka [3 ]
Uchida, Yuji [2 ]
Kurai, Satoshi [1 ]
Taguchi, Tsunemasa [1 ]
机构：
[1] Graduate School of Science and Engineering, Yamaguchi University, Yamaguchi, Japan
[2] Faculty of Engineering, Yamaguchi University, Yamaguchi, Japan
[3] Choshu Industry CO., LTD, Japan
来源：
Journal of Light and Visual Environment | 2008年 / 32卷 / 01期
关键词：
Quantum efficiency - Light emission - Light emitting diodes - Color;
D O I：
10.2150/jlve.32.39
中图分类号：
学科分类号：
摘要：
Highly luminous efficiency and color rendering index (CRI) of 70 lm/W and 95 under low correlated color temperature (CCT) of 3177 K has been obtained by phosphor conversion (PC) white light-emitting diodes (LEDs) using near-ultra violet (n-UV) LEDs with the external quantum efficiency (EQE) of 46.7%. The homogenous spatial color uniformity on chromaticity of PC white LEDs excited by n-UV LEDs are particularly adequate to the general lighting applications.
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页码：39 / 42
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