標題: | Increasing the extraction efficiency of AlGaInP LEDs via n-side surface roughening |
作者: | Lee, YJ Kuo, HC Wang, SC Hsu, TC Hsieh, MH Jou, MJ Lee, BJ 光電工程學系 Department of Photonics |
關鍵字: | AlGaInP;light-emitting diode (LED);surface roughening |
公開日期: | 1-十一月-2005 |
摘要: | An n-side-up AlGaInP-based light-emitting diode (LED) with a triangle-like surface morphology was fabricated using the adhesive layer bonding technique, followed by wet etching to roughen the surface. The light output power of the roughened-surface LED was 1.6 times higher than that of a flat-surface LED at an injection current of 20 mA, i.e., a significant improvement attributed to the ability of the roughened surface to not only reduce the internal reflection between the rear mirror system and the semiconductor-air interface, but also to effectively scatter the light outside the LED device. |
URI: | http://dx.doi.org/10.1109/LPT.2005.858153 http://hdl.handle.net/11536/13116 |
ISSN: | 1041-1135 |
DOI: | 10.1109/LPT.2005.858153 |
期刊: | IEEE PHOTONICS TECHNOLOGY LETTERS |
Volume: | 17 |
Issue: | 11 |
起始頁: | 2289 |
結束頁: | 2291 |
顯示於類別: | 期刊論文 |