Please use this identifier to cite or link to this item: http://cris.utm.md/handle/5014/223
Title: Influence of glassy backbone on the photoformation and properties of solid electrolytes Ag: As-S-Ge
Authors: TSIULYANU, D. 
STRATAN, Ion 
CIOBANU, M. 
Keywords: Ag: As-S-Ge;Glassy backbone;IR measurements;solid electrolytes
Issue Date: 2020
Source: TSIULYANU , Dumitru; STRATAN, Ion; CIOBANU, Marina. Influence of glassy backbone on the photoformation and properties of solid electrolytes Ag: As-S-Ge. In: Chalcogenide Letters. 2020, nr. 1(17), pp. 9-14. ISSN 1584-8663.
Project: 15.817.02.29A. Multifunctional nanomaterials and nanoelectronic devices based on nitrides, oxides and chalcogenides for biomedicine / Nanomateriale multifuncţionale şi dispozitive nanoelectronice în bază de nitruri, oxizi şi calcogenuri pentru biomedicină 
20.80009.5007.21. Calcogenuri sticloase cu reţele spaţiale autoorganizate pentru bioinginerie 
Journal: Chalcogenide Letters
Abstract: 
The effect of the glassy backbone on the process of fabrication and some properties of solid electrolytes obtained via photodissolution (PD) of Ag into chalcogenide glasses (ChG) of the system As-S-Ge have been studied with respect to XRD and far IR spectroscopy analyses. The compositional tie – line (GeS4)x (AsS3)1-x has been chosen to realize the monotonic transition of the structural units of glassy backbone from trigonal to tetragonal configuration. It is shown that the process of solid electrolyte formation occurs in three steps, but the last two steps, as well as the electrical properties of the finally fabricated electrolyte, are strongly influenced by chemical composition and microstructure of the used ChG backbone. The rate of solid electrolyte formation exhibit a maximum around of glassy backbone composition (GeS4)0.33(AsS3)0.67 but the electrical resistivity of fabricated solid electrolytes reaches a minimum at this composition. Based on IR transmission spectra analyses, it is assumed that these peculiarities are due to glass homogenization, which results from building in this alloyed composition of an amalgamation of tetrahedral and trigonal structural units connected in a random network, without clustering. Such homogenization promotes the transport of both electrons and ions involved in photoreaction because of lack of phase boundaries and additional defects.
URI: http://repository.utm.md/handle/5014/6460
http://cris.utm.md/handle/5014/223
ISSN: 1584-8663
Appears in Collections:Journal Articles

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