Ming Luo, Kui Cheng, Wenjian Weng*, Chenlu Song, Piyi Du, Ge Shen, Gang Xu and Gaorong Han
* Corresponding author: Wenjian Weng wengwj@zju.edu.cn
Nanoscale Research Letters 2009, 4:809-813 doi:10.1007/s11671-009-9319-5
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