Huang, H.W., Huang, J.K., Lin, C.H., Lee, K.Y., Hsu, H.W. Yu, C.C. and Kuo, H.C. (2010) Efficiency Improvement of GaN-Based LEDs with a SiO2 Nanorod Array and a Patterned Sapphire Substrate. IEEE Electron Device Letters, 31, 582-584.
https://doi.org/10.1109/LED.2010.2045472

has been cited by the following article:

• TITLE: Improving the Light Extraction Efficiency of GaN-Based Light-Emitting Diode

  AUTHORS: Lianjun Zhang, Zhongqi Fan, Gang Liu

  KEYWORDS: Light Emitting Diodes, Light Extraction Efficiency, Photonic Crystals, Epitaxial Lateral Overgrowth

  JOURNAL NAME: World Journal of Engineering and Technology, Vol.9 No.2, May 10, 2021

  ABSTRACT: The light extraction efficiency caused by total internal reflection is low. Based on the analysis of the existing technology, a new design scheme is proposed in this paper to improve the light extraction efficiency. The air gap photonic crystal is embedded on the GaN-based patterned sapphire substrate, which can reduce line misalignment and improve light extraction efficiency. The internal structure of the GaN-based LED epitaxial layer is composed of an electron emission layer, a quantum well in the light-emitting recombination region, and an electron blocking layer. Experimental results show that this method significantly improves the extraction efficiency of LED light.