1. Electronic Materials Research LaboratoryKey Laboratory of the Ministry of Education & International Center for Dielectric ResearchSchool of Electronic and Information EngineeringState Key Laboratory for Mechanical Behavior of Materials, and International Joint Laboratory for Micro/Nano Manufacture and Measurement TechnologyXi’an Jiaotong University Xi’an 710049 China
2. Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences Ningbo 315201 China
3. Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of Sciences Beijing 100049 China