1. School of Materials Science and Engineering Dongguan University of Technology Dongguan Guangdong 523808 China
2. Physical Sciences Division Pacific Northwest National Laboratory Richland WA 99352 USA
3. Institutes of Physical Science and Information Technology Anhui University JiuLong Rd Hefei Anhui 230601 China
4. Key Laboratory of Structure and Functional Regulation of Hybrid Material (Ministry of Education) Anhui University Hefei Anhui 230601 P. R. China
5. Department of Physics Jiangxi Normal University Nanchang Jiangxi 330022 China
6. Energy and Environmental Directorate Pacific Northwest National Laboratory Richland WA 99352 USA
7. Department of NanoEngineering University of California San Diego La Jolla CA 92093 USA
8. Department of Chemical Engineering University of Washington Seattle WA 98195 USA
9. Institute for Sustainable Energy/College of Sciences Shanghai University Shanghai 200444 China