1. College of Physics and Optoelectronic Engineering, Shenzhen University, Guangdong 518060, P. R. China
2. Smart Materials for Architecture Research Lab, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing 314100, P. R. China
3. Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
4. School of Physics, Nankai University, Tianjin 300071, P. R. China
5. Department of Materials Science and Nano Engineering, Department of Chemistry and the Smelly Institute for Nano Scale Science and Technology, Rice University, Houston, TX 77005, USA