1. Division of Chemistry and Biological Chemistry
2. School of Physical and Mathematical Sciences
3. Nanyang Technological University
4. Singapore 637371
5. Institute of Materials Research and Engineering
6. Shaanxi Engineering Lab for Advanced Energy Technology
7. School of Materials Science and Engineering
8. Shaanxi Normal University
9. Xi'an
10. China
11. Agency for Science
12. Technology and Research (A*STAR)
13. Innovis
14. Singapore 138634