1. Department of Photonics; National Cheng Kung University; Tainan Taiwan 701 ROC
2. Advanced Optoelectronic Technology Center; National Cheng Kung University; Tainan Taiwan 701 ROC
3. Research Center for Energy Technology and Strategy; National Cheng Kung University; Tainan Taiwan 701 ROC
4. Department of Chemical Engineering; National Cheng Kung University; Tainan Taiwan 701 ROC
5. National Synchrotron Radiation Research Center; Hsinchu Taiwan 300 ROC