Recent development of patterned structure light-emitting diodes

Jaehee Cho; Jeong Wook Lee; Jin Seo Im; Cheolsoo Sone; Yongjo Park; Dongho Kim; Heonsu Jeon; Euijoon Yoon; Dong-Seok Leem; Tae-Yeon Seong

doi:10.1117/12.625922

2 September 2005 Recent development of patterned structure light-emitting diodes

Jaehee Cho, Jeong Wook Lee, Jin Seo Im, Cheolsoo Sone, Yongjo Park, Dongho Kim, Heonsu Jeon, Euijoon Yoon, Dong-Seok Leem, Tae-Yeon Seong

Author Affiliations +

Proceedings Volume 5941, Fifth International Conference on Solid State Lighting; 594102 (2005) https://doi.org/10.1117/12.625922
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

The efficiency of a conventional light emitting diode (LED) is limited by coupling of light into guided modes in the structure. Several methods to increase the extraction efficiency of nitride based LEDs are studied from the perspective of the patterned structures in LEDs. The patterned structures are made in the interface between a semiconductor and a sapphire substrate and on the surface of a semiconductor or an indium tin oxide electrode. All of these approaches show an increased light output compared to that of reference samples, which means these kinds of scattering sources are inevitable to make a highly efficient light emitter in nitride-based semiconductor system.

Citation Download Citation

Jaehee Cho, Jeong Wook Lee, Jin Seo Im, Cheolsoo Sone, Yongjo Park, Dongho Kim, Heonsu Jeon, Euijoon Yoon, Dong-Seok Leem, and Tae-Yeon Seong "Recent development of patterned structure light-emitting diodes", Proc. SPIE 5941, Fifth International Conference on Solid State Lighting, 594102 (2 September 2005); https://doi.org/10.1117/12.625922

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