1. Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-Based Electronics, Department of Electronics, Peking University, Beijing 100871, China.
2. Collaborative Innovation Center of Chemistry for Energy Materials, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
3. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China.
4. Materials Science and Engineering Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899, USA.
5. Institute of Microelectronics, Beijing Innovation Center for Future Chips (ICFC), Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China.