Institution: | a Department of Chemistry and Center for Nanotechnology at CYCU, Chung Yuan Christian University, 200 Chung-Pei Road, Chung-Li 32023, Taiwan, ROC b Department of Physics, Chung Yuan Christian University, 200 Chung-Pei Road, Chung-Li 32023, Taiwan, ROC c Department of Electrical Engineering, Chung Yuan Christian University, 200 Chung-Pei Road, Chung-Li 32023, Taiwan, ROC |