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Ion conductive chalcogenide glasses in LiI-Ga2S3-GeS2
Authors: Kolář Jakub | Wágner Tomáš | Zima Vítězslav | Stehlík Štěpán | Frumarová Božena | Beneš Ludvík | Vlček Milan | Frumar Miloslav
Year: 2011
Type of publication: článek v odborném periodiku
Name of source: Journal of Non-Crystalline Solids
Publisher name: Elsevier Science BV
Place: Amsterdam
Page from-to: 2223-2227
Titles:
Language Name Abstract Keywords
cze Iontová vodivost chalkogenidových skel v LiI-Ga2S3-GeS2 Byly studovány elektrické vlastnosti LiI obsahující chalkohalidová skla v systému Ga(2)S(3)-GeS(2)pomocí potenciostatické chronoamperometrie. chalkohalidová skla;iontová vodivost;potenciostatická chronoamperometrie
eng Ion conductive chalcogenide glasses in LiI-Ga2S3-GeS2 The electric properties of LiI containing chalcohalide glasses in the system Ga(2)S(3)-GeS(2) were studied by means of impedance spectroscopy and potentiostatic chronoamperometry. Two sets of the samples were prepared by direct synthesis from elements and compounds in evacuated quartz ampoules. The prepared glasses were as follows: xLiI-xGa(2)S(3)-(100-2x)GeS(2), x = 15, 20, 25 and 20LiI-xGa(2)S(3)-(80-x)GeS(2), x = 0, 5, 10, 15 and 20. In the first set the concentration of LiI increased and the second set was prepared to study the influence of Ga(2)S(3) on the properties of the glasses. Additional aim of this work was to compare the electric properties of LiI containing Ga(2)S(3)-GeS(2) glasses with analogous Agl containing Ga(2)S(3)-GeS(2) glasses recently studied by us. The conductivity of the LiI containing glasses in the Ga(2)S(3)-GeS(2) system was higher and the activation energy was lower than in the analogous Agl containing system. The residual electronic (hole) conductivity remained similar in both systems being almost negligibly low. Raman spectroscopy proved the influence of LiI as well as Ga(2)S(3) on glass structure, however interpretation of Raman spectra of these glasses is complicated due to small mass difference between gallium and germanium Chalcohalide glasses;Ionic conductivity;Impedance spectroscopy;Potentiostatic chronoamperometry

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