1. CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics & Chemistry, CAS Xinjiang Key Laboratory of Electronic Information Materials and Devices 40-1 South Beijing Road Urumqi 830011 P.R. China
2. Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 P.R. China
3. Xuchang Quality and Technical Supervision Inspection and Testing Center National Quality Supervision and Inspection Center for Ceramic Products of China West Section of Longxing Road Dongcheng District Xuchang 461000 P.R. China