標題: | One-shot exposure for patterning two-dimensional photonic crystals to enhance light extraction of InGaN-based green LEDs |
作者: | Hsieh, Mei-Li Lo, Kuo-Chang Lan, Yi-Sheng Yang, S. Y. Lin, C. H. Liu, H. M. Kuo, H. C. 光電工程學系 Department of Photonics |
關鍵字: | holography;light-emitting diode (LED);photonic crystal |
公開日期: | 1-一月-2008 |
摘要: | To promote the feasibility of using photonic crystals to enhance light extraction of light-emitting diodes (LEDs) for industrial applications, the request for the high-yield and simple exposure process to pattern two-dimensional photonic crystals (2DPCs) becomes rather urgent. In this work, we developed a one-shot three-beam laser interference system-to fabricate a 2DPC on an InGaN-based green LED to address its performance for backlight display applications. Using the current exposure system we develop here, a submicro-patterned area of 6 mm in diameter can be achieved. The experimental results show that the operating voltage of a 1 x 1 mm(2) in-area LED incorporated with the 2DPC is around 4 V, and the light extraction efficiency is enhanced by a factor of 2.1. |
URI: | http://dx.doi.org/10.1109/LPT.2007.912510 http://hdl.handle.net/11536/9876 |
ISSN: | 1041-1135 |
DOI: | 10.1109/LPT.2007.912510 |
期刊: | IEEE PHOTONICS TECHNOLOGY LETTERS |
Volume: | 20 |
Issue: | 1-4 |
起始頁: | 141 |
結束頁: | 143 |
顯示於類別: | 期刊論文 |