Raman spectra of MCl-Ga2S3-GeS2 (M = Na, K, Rb) glasses

被引：2

作者：

Bokova, Maria ^{[1
]}

Paraskiva, Alla ^{[1
]}

Kassem, Mohammad ^{[1
]}

Bychkov, Eugene ^{[1
]}

机构：

[1] Univ Littoral Cote dOpale, Lab Physicochim Atmosphere, F-59140 Dunkerque, France

来源：

PURE AND APPLIED CHEMISTRY | 2022年 / 94卷 / 02期

关键词：

Chalcohalide glasses; Raman spectroscopy; solid state chemistry; SSC; 2021; STRUCTURAL-ANALYSIS; GALLIUM; CONDUCTIVITY; SYSTEM; GES2;

D O I：

10.1515/pac-2021-0702

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Raman spectra of (MY)( x )(Ga2S3)(0.2-0.2x )(GeS2)(0.8-0.8x ) pseudo-ternary glassy systems (M = Na, K, Rb; Y = Cl, Br, I) were investigated systematically as a function of MY nature and alkali content. Raman spectroscopy of the Ga3S3-GeS2 glassy matrix shows a complicated local structure: corner-sharing CS- and edge-sharing ES-GeS4/2 tetrahedra, Ga-S triclusters and ETH-Ga2S6/2 ethane-like units. The Ga2S6/2 population decreases with increasing x related to a substitution of some bridging sulfur atoms around central Ga by terminal Y species with a respective decrease of the network rigidity. The formation of mixed Ga-(S,Y) environment is affected by the M+ ion size and the MY concentration.

引用

页码：181 / 188

页数：8

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