*Zi-Hao Wang1, Chih-Chiang Yang2, Hsin-Chieh Yu3, Shi-Wei Luo4, Yan-Kuin Su2,4
(1. Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, Taiwan, 2. Green Energy Technology Research Center, Department of Electrical Engineering, Kun Shan University,Tainan, Taiwan, 3. Institute of Lighting and Energy Photonics, College of Photonics, National Chiao Tung University, Tainan, Taiwan, 4. Institute of Microelectronics Engineering, National Cheng Kung University, Tainan, Taiwan)