1. State Key Laboratory of Supramolecular Structure and Materials; College of Chemistry; Jilin University; Changchun 130012 P. R. China
2. Department of Materials Science; Key Laboratory of Mobile Materials MOE; State Key Laboratory of Automotive Simulation and Control; Jilin University; Changchun 130012 China
3. State Key Laboratory of Superhard Materials; Jilin University; Changchun 130012 China
4. Department of Mechanical and Materials Engineering; University of Nebraska-Lincoln; Lincoln NE 68588 USA
5. Department of Physics and Engineering Physics; University of Saskatchewan; Saskatoon S7N5E2 Canada
6. Department of Earth Sciences; University of Cambridge; Downing Street Cambridge CB2 3EQ UK
7. State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering; Jilin University; Changchun 130012 P. R. China