Effective ionic transport in AgI-based Ge(Ga)-Sb-S chalcogenide glasses

Abstract : AgI-based Ge-Sb-S, Ga-Sb-S, and Ge-Ga-Sb-S chalcogenide glasses were designed and prepared by melt-quenching, thereafter their thermal properties and conductive performance were comparatively investigated on the basis of their composition-induced network structures. Glass transition in each sample was examined by DSC measurements. Results showed that the samples containing Ge had a higher thermal stability than the Ga-Sb-S-AgI sample, and the Ge-Sb-S-AgI sample obtained had the highest conductivity ion. Raman spectrum analysis was performed, and the results indicated that the [GeS4-xIx] structural units and [SbS3-xIx] pyramids in the matrix produced effective ion transport channel for dissolved conductive Ag+ ions. In the matrix containing Ga, the [Ga(Ge)S4-xIx] structure was consumed by part of [S3Ga-GaS3] ethane-like units, which had no contribution to the ion transition framework. The study provided the directions for composition and structure configuration control in effective conductive chalcogenide glasses.
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Journal articles
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Submitted on : Wednesday, October 2, 2019 - 11:51:49 AM
Last modification on : Thursday, October 3, 2019 - 1:22:45 AM

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Yeting Zhang, Qing Jiao, Baochen Ma, Xianghua Zhang, Xueyun Liu, et al.. Effective ionic transport in AgI-based Ge(Ga)-Sb-S chalcogenide glasses. Journal of the American Ceramic Society, Wiley, 2019, ⟨10.1111/jace.16729⟩. ⟨hal-02303392⟩

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