1. Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile DriveSan Diego, California92182, United States
2. State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen518055, China
3. Department of Materials Science and Engineering, University of California, Irvine, California92697, United States
4. Department of Physics, Wuhan University, Wuhan430072, China
5. Department of Chemistry, Marquette University, Milwaukee, Wisconsin53201, United States
6. Department of Physics and Astronomy, University of California, Irvine, California92697, United States