1. State Key Laboratory of Organic–Inorganic Composites
2. Beijing University of Chemical Technology
3. Beijing 100029
4. P. R. China
5. Institute of Physics
6. Faculty of Chemistry and Chemical Technology
7. University of Ljubljana
8. 1000 Ljubljana
9. Slovenia
10. Chinese Academy of Sciences
11. Beijing 100190
12. Songshan Lake Materials Laboratory
13. Institut für Theoretische Physik II
14. Heinrich-Heine-Universität Düsseldorf
15. 40225 Düsseldorf
16. Germany