Ashish C Gandhi, Hsuan-Jung Hung, Po-Hsun Shih, Chia-Liang Cheng, Yuan-Ron Ma and ShengYun Wu*
* Corresponding author: ShengYun Wu sywu@mail.ndhu.edu.tw
Nanoscale Research Letters 2009, 5:581-586 doi:10.1007/s11671-009-9509-1