1. School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
2. Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, China
3. Department of Electrical and Biomedical Engineering, University of Nevada Reno, Reno, Nevada 89557, United States
4. Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States