1. State Key Laboratory of Crystal Materials
2. Shandong University
3. Jinan
4. P. R. China
5. Center of Electron Microscope
6. State Key Laboratory of Silicon Materials
7. School of Materials Science and Engineering
8. Zhejiang University
9. Hangzhou
10. School of Environment and Material Engineering
11. Yantai University
12. Yantai 264005
13. China
14. School of Environmental Science and Engineering