1. School
of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
2. Chemical
and Material Sciences Center, National Renewable Energy Laboratory, 15013
Denver West Parkway, Golden, Colorado 80401, United States
3. Department
of Physics, Colorado School of Mines, 1523 Illinois Street, Golden, Colorado 80401, United States
4. Center
for Advanced Solar Photophysics, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
5. Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States