1. CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, P. R. China
2. University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, P. R. China
3. Corning Research Center China, 200 Jinsu Road, Shanghai 201206, P. R. China
4. Corning Incorporated, Corning, New York 14831, United States