1. Department of Polymer Science and Engineering, CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
2. Department of Engineering Mechanics and Center for X-Mechanics, Zhejiang University, Hangzhou 310027, P. R. China
3. Computer Network Information Center of the Chinese Academy of Sciences, Beijing 100083, P. R. China
4. Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China