[PS-7-24] Light extraction enhancement of GaN-based light emitting diodes using crown shaped patterned sapphire substrates

C. Y. Liu¹, C. H. Chiu¹, C. C. Lin², C. Y. Lee¹, B. W. Lin⁴, W. C. Hsu⁴, G. C. Chi¹, H. C. Kuo¹, C. Y. Chang³ (1.National Chiao-Tung Univ. , Hsinchu, Taiwan, 2.National Chiao-Tung Univ. , Tainan, Taiwan, 3.National Chiao-Tung Univ., 4.Sino-American Silicon Products Inc. , Hsinchu, Taiwan)

https://doi.org/10.7567/SSDM.2012.PS-7-24