Gan Zhixing, Wu Xinglong, Zhu Xiaobin, Shen Jiancang
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, P.R. China.
Angew Chem Int Ed Engl. 2013 Feb 11;52(7):2055-9. doi: 10.1002/anie.201207992. Epub 2013 Jan 10.