Institution: | 1. Nano-Technology R&D Center, Kun Shan University, YungKang 710, Taiwan;2. Department of Physics, National Cheng Kung University, Tainan 700, Taiwan;3. Graduate Institute of Electro-Optical and Materials Science, National Formosa University, Huwei, Yunlin, Taiwan, ROC;4. National Synchrotron Radiation Research Center, Hsinchu, Taiwan, ROC |