1. College of Physics and College of Chemistry
2. Liaoning University
3. Shenyang 110036
4. P. R. China
5. State Key Lab of Molecular Reaction Dynamics
6. Dalian Institute of Chemical Physics
7. Chinese Academy of Sciences
8. Dalian 116023
9. China
10. Normal College
11. Shenyang University
12. Shenyang 110044
13. Liaoning Key Laboratory of Semiconductor Light Emitting and Photocatalytic Materials