Open AccessAlGaInP LED with surface structure of two-dimensional photonic crystal
Author(s) -
YX Chen,
Zheng Wh,
W Chen,
Chen Lh,
Tang Yd,
Shen Gd
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
ISSN - 1000-3290
DOI - 10.7498/aps.59.8083
Subject(s) - photonic crystal , materials science , yablonovite , optoelectronics , photonics , grating , optics , crystal (programming language) , band gap , photonic integrated circuit , physics , computer science , programming language
Some progress in the research of GaN based LED with photonic crystal structure has been made recently. Based on the photonic crystals photonic band gap effect and photon grating diffraction principle,the extraction efficiency of LED with photonic crystal can be improved. In this paper,the restriction on AlGaInP LEDs extraction efficiency is analyzed,and the photonic crystal is introduced in to the AlGaInP LED to improve the extraction efficiency. The theoretical analyses and the experiment results show that the output luminous intensity of LED with photonic crystal is improved by 16%,which results from some effect of the GaN based LED with photonic crystal.