Zhou ShaoMin*, Yuan HongLei, Liu LiSheng, Chen XiLiang, Lou ShiYun, Hao YaoMing, Yuan RuiJian and Li Ning
* Corresponding author: Zhou ShaoMin smzhou@henu.edu.cn
Nanoscale Research Letters 2010, 5:1284-1288 doi:10.1007/s11671-010-9639-5