Omni-directional reflectors for light-emitting diodes

被引：1560

作者：

Kim, Jong Kyu ^{[1
]}

Xi, J. -Q. ^{[1
]}

Schubert, E. Fred ^{[1
]}

机构：

[1] Rensselaer Polytech Inst, Dept Elect Comp & Syst Engn, Future Chips Constellat, Troy, NY 12180 USA

来源：

LIGHT-EMITING DIODES: RESEARCH, MANUFACTURING, AND APPLICATIONS X | 2006年 / 6134卷

关键词：

light-emitting diode; omni-directional reflector;

D O I：

10.1117/12.661563

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：

This article discusses possible solutions to limitations in light extraction efficiency of light-emitting diodes (LEDs) using new types of triple-layer omni-directional reflectors (ODRs). The ODRs have lower mirror losses than metal reflectors and distributed Bragg reflectors (DBRs). High-reflectivity ODRs have been incorporated into AlGaInP LEDs and GaInN LEDs. It is shown that the ODR significantly increases light extraction from ODR-LEDs as compared to reference LEDs employing a DBR or metal reflector. Other examples of innovative concepts to be presented include novel materials with unprecedented low-refractive index, which further enhance the optical properties of ODRs.

引用

页数：12

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