Affiliation: | (1) Department of Physics, Center for Nanotechnology at CYCU and R&D Center for Membrane Technology, Chung Yuan Christian University, Chung-Li, Taiwan, R.O.C.;(2) Department of Physics, National Central University, Chung-Li, 320, Taiwan, R.O.C.;(3) Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung, Taiwan, R.O.C.;(4) Department of Electronic Engineering, Tung Nan Institute of Technology, Taipei, Taiwan, R.O.C.;(5) Department of Electrical Engineering, Yuan Ze University, Chung-Li, Taiwan, R.O.C. |