1. Micro-optoelectronic Systems Laboratories; Xi'an Technological University; Xi'an Shaanxi China
2. Materials Science and Engineering; University of Sheffield; Sheffield UK
3. Electronic Materials Research Laboratory; Key Laboratory of the Ministry of Education & International Center for Dielectric Research; Xi'an Jiaotong University; Xi'an Shaanxi China
4. State Grid Gansu Electric Power Research Institute; Lanzhou China
5. State Key Laboratory of New Ceramics and Fine Processing; Department of Materials Science and Engineering; Tsinghua University; Beijing China