1. Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
2. University of Chinese Academy of Sciences Beijing 100049 China
3. HT-NOVA Co., Ltd. Zhuyuan Road, Shunyi District Beijing 101312 China
4. Hebei Key Laboratory of Organic Functional Molecules College of Chemistry and Material Science Hebei Normal University Shijiazhuang 050023 P. R. China
5. Nano Institute of Utah, and Department of Materials Science and Engineering University of Utah Salt Lake City, Utah 84112 United States