Enhancement of Light Extraction Efficiency Using Lozenge-Shaped GaN-Based Light-Emitting Diodes
- Title
- Enhancement of Light Extraction Efficiency Using Lozenge-Shaped GaN-Based Light-Emitting Diodes
- Author
- 신동수
- Keywords
- Extraction efficiency; light-emitting diodes (LEDs); GaN; lozenge; shaping
- Issue Date
- 2009-05
- Publisher
- Institute of Electrical and Electronics Engineers
- Citation
- IEEE Photonics Technology Letters, v. 21, NO. 9-12, Page. 760-762
- Abstract
- We have demonstrated both theoretically and experimentally that a lozenge-shaped light-emitting diode (LED) enhances light extraction efficiency compared with a conventional rectangular LED. The total light output power of the lozenge-shaped LED on a transmitter optical can (TO-can)-type package shows an increase of 12% at an injection current of 20 mA when compared with that of a rectangular LED. Moreover, the series resistance and the forward voltage of the lozenge-shaped LED slightly decrease compared with those of the rectangular LED. The far-field emission pattern shows that the light escaping from the lozenge-shaped LED along the horizontal direction is larger than that from the rectangular LED.
- URI
- https://ieeexplore.ieee.org/document/4801722https://repository.hanyang.ac.kr/handle/20.500.11754/181916
- ISSN
- 1041-1135;1941-0174
- DOI
- 10.1109/LPT.2009.2017504
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > PHOTONICS AND NANOELECTRONICS(나노광전자학과) > Articles
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