1. Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
2. Flexible Integrated Circuit Center, Institute of Flexible Electronic Technology of THU, Zhejiang, Jiaxing 314006, China
3. Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China
4. AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
5. Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China