Institution: | a Department of Chemical Engineering, Tunghai University, Taichung 40744, Taiwan b Department of Physics, Tougaloo College, Tougaloo, MS 39174, USA c Department of Physics, University of South Florida, Tampa, FL 33620-5700, USA d Asylum Research, 3-4 Shaochuan Street, Kaohsiung City 80441, Taiwan, ROC e Department of Chemistry and Center for Advanced Materials and Nanotechnology, Lehigh University, 6E. Packer Ave., Bethlehem, PA 18015-3172, United States |