1. State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
2. Department of Chemistry and Physics, Louisiana State University, Shreveport, Louisiana 71115, United States
3. Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
4. Institute for Micromanufacturing, Louisiana Tech University, Ruston, Louisiana 71270, United States
5. Key Laboratory of Materials Physics of Ministry of Education, Department of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China