High-power III-nitride emitters for solid-state lighting

被引:0
|
作者
Krames, MR [1 ]
Collins, JBD [1 ]
Gardner, NF [1 ]
Gotz, W [1 ]
Lowery, CH [1 ]
Ludowise, M [1 ]
Martin, PS [1 ]
Mueller, G [1 ]
Mueller-Mach, R [1 ]
Rudaz, S [1 ]
Steigerwald, DA [1 ]
Stockman, SA [1 ]
Wierer, JJ [1 ]
机构
[1] Lumileds Lighting, San Jose, CA 95131 USA
来源
关键词
D O I
10.1002/1521-396X(200208)192:2<237::AID-PSSA237>3.0.CO;2-I
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
High-power, large-area InGaN/GaN quantum-well heterostructure light-emitting diodes based on an inverted, or "flip-chip", configuration are described. These devices are mounted in specially designed high-power (approximate to1-5 W) packages and exhibit high extraction efficiency and low operating voltage. In the blue wavelength regime, output powers greater than 250 mW (1 x 1 mm(2) device) and 1 W (2 x 2 mm(2) device) are delivered at standard operating current densities (approximate to50 A/cm(2)), corresponding to "wall-plug" efficiencies of 22%-23%. Employing phosphors for the generation of white light, these same devices achieve luminous efficiencies greater than 30 lm/W.
引用
收藏
页码:237 / 245
页数:9
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