A new kind of ion-conductingglasses based on GeS2-Ga2S3-AgI system is prepared. A relatively large amount of silver can be dissolved into this kind of glass system, and the obtained glasses are still transparent in the red part of the visible spectrum. Only a three times increase in the silver concentration can lead to approximately two hundred times increase in the ionic conductivity. The structural contributions to the ionic conductivity of the glasses are discussed. The present glasses show potential to be used as solid state electrolyte.
Received 05 May 2013Accepted 19 June 2013Published online 08 July 2013
This study was supported by Shanghai Leading Academic Discipline Project (No. B502), Shanghai Key Laboratory Project (08DZ2230500), and the National Natural Science Foundation of China (NSFC 51072052).
Article outline: I. INTRODUCTION II. EXPERIMENTAL III. RESULTS AND DISCUSSION A. Raman spectra B. Conductivity study C. Permittivity IV. CONCLUSION
6.S. Stehlik, V. Zima, T. Wagner, J. Ren, and M. Frumar, “ Conductivity and permittivity study on silver and silver halide doped GeS2-Ga2S3 glassy system,” Solid State Ionics179(33-34), 1867–1875 (2008).
8.J. Kolar, T. Wagner, V. Zima, S. Stehlik, B. Frumarova, L. Benes, M. Vlcek, M. Frumar, and S. O. Kasap, “ Ion conductive chalcohalide glasses in LiI-Ga2S3-GeS2 system,” J. Non-Cryst. Solids357(11-13), 2223–2227 (2011).
10.J. Saienga, “ Optimization of fast ionic conducting glasses for lithium batteries,” Ph.D. dissertation (Iowa State University, 2005).
11.J. Ren, T. Wagner, J. Orava, T. Kohoutek, B. Frumarova, M. Frumar, G. Yang, G. Chen, D. Zhao, A. Ganjoo, and H. Jain, “ In-situ measurement of reversible photodarkening in ion-conducting chalcohalide glass,” Opt. Express16(3), 1466–1474 (2008).
12.C. Julien, S. Barnier, M. Massot, N. Chbani, X. Cai, A. M. Loireau-Lozac'h, and M. Guittard, “ Raman and infrared spectroscopic studies of Ge-Ga-Ag sulphide glasses,” Mater. Sci. Eng. B22(2-3), 191–200 (1994).