1. Guangxi University Key Laboratory of Non‐ferrous Metal Oxide Electronic Functional Materials and Devices, College of Material Science and Engineering Guilin University of Technology Guilin China
2. Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment Northumbria University, Newcastle Newcastle upon Tyne UK
3. Guangxi Key Laboratory of Embedded Technology and Intelligent System Guilin University of Technology Guilin China
4. Electronic Materials Research Laboratory Key Laboratory of the Ministry of Education and International Center for Dielectric Research Xi'an Jiaotong University Xi'an Shaanxi China