Acta Photonica Sinica, Volume. 39, Issue 11, 1956(2010)
Improvement for the Light Extraction Efficiency of LightEmitting Diodes
The impact of the refractive index and thickness of substrate on the light extraction efficiency of flipchip LED is analyzed through simulation analysis. And a new diamondshaped structure is proposed. The results show that the light extraction efficiency is improved to a good purpose in the diamondshaped LED, resulting in an increase in the light extraction efficiency by 1.51,2.03 or 3.65 times when the substrate is Si, Sapphire or SiC espectively.
Get Citation
Copy Citation Text
XIONG Weiping, FAN Guanghan, LI Qi. Improvement for the Light Extraction Efficiency of LightEmitting Diodes[J]. Acta Photonica Sinica, 2010, 39(11): 1956