1. Laboratory of Infrared Materials and Devices; The Research Institute of Advanced Technologies; Ningbo University; Fenghua Load No. 818 Ningbo 315211 China
2. Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province; Ningbo University; Fenghua Load No. 818 Ningbo 315211 China
3. Laboratoire des Verres et Céramiques; UMR-CNRS 6226; Sciences chimiques de Rennes; Université de Rennes 1; Rennes Cedex 135042 France