Login for students

Login for employees

Publication detail

Electrical mobility of silver ion in Ag2O-B2O3-P2O5-TeO2 glasses
Authors: Sklepic Kristina | Vorokhta Maryna | Mošner Petr | Koudelka Ladislav | Mogus-Milankovic Andrea
Year: 2014
Type of publication: článek v odborném periodiku
Name of source: Journal of Physical Chemistry B
Publisher name: American Chemical Society
Place: Washington
Page from-to: 12050-12058
Titles:
Language Name Abstract Keywords
cze Elektrická mobilita stříbrných iontů ve sklech systému Ag2O-B2O3-P2O5-TeO2 Byl studován vliv přídavku TeO2 na strukturu, termické chování a elektrické vlastnosti skel připravených v kompoziční řadě (100-x)[0.5Ag2O−0.1B2O3−0.4P2O5]−xTeO2 (x=0−80 mol% TeO2). Struktura skel byla studována pomocí Ramanovy spektroskopie, termické chování pomocí DSC a termodilatometrie. Ke studiu elektrických vlastností skel v závislosti na teplotě byla použita impedanční spektroskopie. borofosforečnanová skla; elektrická mobilita stříbrných iontů; elektrické moduly
eng Electrical mobility of silver ion in Ag2O-B2O3-P2O5-TeO2 glasses The effect of adding TeO2 into (100-x)[0.5Ag2O−0.1B2O3−0.4P2O5]−xTeO2, with 0−80 mol% TeO2 glass on the structural changes and electrical properties has been investigated. DSC and thermodilatomery were used to study their thermal behavior, structure was studied by Raman spectroscopy and electrical properties have been studied over a wide temperature and frequency range by impedance spectroscopy. The addition of the third glass former, TeO2, to the glass network causes the structural transformation from TeO3 (tp) to TeO4 (tbp) which contributes to the changes in conductivity. The glasses with low TeO2 content show only a slow decrease in dc conductivity with addition of TeO2 due to the increase of the number of non-bridging oxygens, which increases the mobility of Ag+ ions. The steep decrease in conductivity for glasses containing more than 40 mol% TeO2 is a result of decrease of the Ag2O content and stronger cross-linkage in glass network through the formation of more Te-eqOax-Te bonds in TeO4 tbp units. The glasses obey scaling of the ac conductivity with respect to temperature indicating that the dynamic process is independent of temperature. However, the scaling of the spectra for different glasses revealed deviations from the Summerfield scaling due to the local structural disorder caused by structural transition in tellurite glass network. borophosphate glass; silver-ion mobility; electrical modulus

Departments

Other Parts

Map

en.mapy.cz

Services

Popular Links

© 2023 University of Pardubice, Studentská 95, 532 10 Pardubice 2
Phone: +420 466 036 111, 466 036 112, 466 036 113
Webmaster, RSS
Data box ID: f5vj9hu
Accessibility Statement
CC BY-NC-ND 4.0Creative CommonsAttributionNonCommercialNoDerivatives