1. College of Materials Science and Engineering Sichuan University Chengdu 610064 P. R. China
2. School of Chemistry and Materials University of Science & Technology of China Hefei Anhui 230026 P. R. China
3. College of Materials Science and Engineering Co‐Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry University Nanjing 210037 P. R. China
4. Materials Theory Division Department of Physics and Astronomy Ångström Laboratory Uppsala University Box 516 Uppsala 75120 Sweden
5. Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 China
6. School of Minerals Processing and Bioengineering Central South University Changsha 410083 P. R. China
7. Department of Engineering and Physics Karlstad University Karlstad 65188 Sweden
8. School of Physics and Electronics Central South University Changsha 410083 P. R. China