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Proceedings Paper

Recent development of patterned structure light-emitting diodes
Author(s): Jaehee Cho; Jeong Wook Lee; Jin Seo Im; Cheolsoo Sone; Yongjo Park; Dongho Kim; Heonsu Jeon; Euijoon Yoon; Dong-Seok Leem; Tae-Yeon Seong
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Paper 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.

Paper Details

Date Published: 2 September 2005
PDF: 8 pages
Proc. SPIE 5941, Fifth International Conference on Solid State Lighting, 594102 (2 September 2005); doi: 10.1117/12.625922
Show Author Affiliations
Jaehee Cho, Samsung Advanced Institute of Technology (South Korea)
Seoul National Univ. (South Korea)
Jeong Wook Lee, Samsung Advanced Institute of Technology (South Korea)
Jin Seo Im, Samsung Advanced Institute of Technology (South Korea)
Cheolsoo Sone, Samsung Advanced Institute of Technology (South Korea)
Yongjo Park, Samsung Advanced Institute of Technology (South Korea)
Dongho Kim, Seoul National Univ. (South Korea)
Heonsu Jeon, Seoul National Univ. (South Korea)
Euijoon Yoon, Seoul National Univ. (South Korea)
Dong-Seok Leem, Gwangju Institute of Science and Technology (South Korea)
Tae-Yeon Seong, Gwangju Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 5941:
Fifth International Conference on Solid State Lighting
Ian T. Ferguson; John C. Carrano; Tsunemasa Taguchi; Ian E. Ashdown, Editor(s)

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