1. Department of Physics Research Institute for Biomimetics and Soft Matter Fujian Provincial Key Laboratory for Soft Materials Research Jiujiang Research Institute College of Physical Science and Technology Xiamen University Xiamen 361005 P. R. China
2. State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China
3. The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province Research Center of Biomedical Engineering of Xiamen Department of Biomaterials College of Materials Xiamen University Xiamen 361005 P. R. China
4. Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM) Xiamen 361102 P. R. China