1. Institute for Clean energy & Advanced Materials; Faculty of Materials and Energy; Southwest University; Chongqing 400715 China
2. Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies; Chongqing 400715 China
3. Chongqing Engineering Research Center for Rapid diagnosis of Fatal Diseases; Chongqing 400715 China
4. Department of Physics; The Chinese University of Hong Kong Shatin; Hong Kong China
5. Institute of Agro-Products Processing Science and Technology; Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-products Processing, Ministry of Agriculture; 2 West Yuanmingyuan Road Beijing 100193 China