Phosphors for solid state lighting - art. no. 691010

被引：34
|
作者：
Zachau, M. [1 ]
Becker, D. [1 ]
Berben, D. [1 ]
Fiedler, T. [1 ]
Jermann, F. [1 ]
Zwaschka, F. [1 ]
机构：
[1] OSRAM GmbH, D-81543 Munich, Germany
来源：
LIGHT-EMITTING DIODES: RESEARCH, MANUFACTURING, AND APPLICATIONS XII | 2008年 / 6910卷
关键词：
LED; phosphor; lighting; white; warm white; CRI; garnet; nitride;
D O I：
10.1117/12.760066
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
After an introduction of the basic concepts for solid-state-lighting, i.e. multi-chip LEDs and phosphor-conversion LEDs based on blue or near-UV pump LEDs, white LED phosphors are discussed regarding their match to different application requirements. Since the US Energy Star requirements have set first 'standards' for LED lighting, we evaluate different phosphor solutions for white LEDs mainly regarding these requirements. Efficient daylight LED for outdoor applications can be realized using yellow orthosilicates or garnets. Looking at cool white or even warm white LEDs with CRI 75+ blends of garnets and red nitrides are first choice. Solutions based on garnets and nitrides are superior, where CRI and/or color stability is important. Finally, the strong and package-dependent effect of particle size and scattering on color and efficiency is discussed.
引用
收藏
页码：91010 / 91010
页数：8
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