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Influence of germanium oxide addition on the electrical properties of Li2O-B2O3-P2O5 glasses


Moguš-Milanković, Andrea; Sklepić, Kristina; Blažanović, Hrvoje; Mošner, Petr; Vorokhta, Maryna; Koudelka, Ladislav
Influence of germanium oxide addition on the electrical properties of Li2O-B2O3-P2O5 glasses // Journal of power sources, 242 (2013), 91-98 doi:10.1016/j.jpowsour.2013.05.068 (međunarodna recenzija, članak, znanstveni)


Naslov
Influence of germanium oxide addition on the electrical properties of Li2O-B2O3-P2O5 glasses

Autori
Moguš-Milanković, Andrea ; Sklepić, Kristina ; Blažanović, Hrvoje ; Mošner, Petr ; Vorokhta, Maryna ; Koudelka, Ladislav

Izvornik
Journal of power sources (0378-7753) 242 (2013); 91-98

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
lithium germano-phosphate glasses; lithium ion conductivity; electrical modulus; dielectric relaxation

Sažetak
Lithium ion transport upon the addition of germanium oxide in a series of mixed glass former lithium borophosphate glasses has been investigated. The electrical and dielectric properties of (100-x)[0.5Li2O-0.1B2O3-0.4P2O5]-xGeO2 with 0-25 mol% GeO2 glasses have been carried out over a wide range of temperature (183-523 K) and frequency (0.01 Hz1 MHz). The increase in dc conductivity with the addition of GeO2 is attributed to the formation of ion conducting channels arising from the structural modification and formation of the P-O-Ge linkages, resulting in an easy migration of Li+ ions along these bonds. At higher GeO2 content glass network became more densely packed and ionic conductivity is slightly hindered as a consequence of the increase of bonding forces inside the network. Such a decrease in the conductivity is more reflection of the stronger cross-linkage in the glass network than that of the slight decrease in the Li+ ion concentration. The electrical modulus formalism is used to describe the dielectric relaxation. The scaling of the ac conductivity results in an excellent collapse onto common master curve whereas the electrical modulus spectra showed slight deviation indicating the distribution of relaxation times caused by the presence of various structural units in the glass network.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
098-0982929-2916 - Utjecaj strukture na električna svojstva (bioaktivnih) stakala i keramike (Andrea Moguš-Milanković, )

Ustanove
Institut "Ruđer Bošković", Zagreb

Citiraj ovu publikaciju

Moguš-Milanković, Andrea; Sklepić, Kristina; Blažanović, Hrvoje; Mošner, Petr; Vorokhta, Maryna; Koudelka, Ladislav
Influence of germanium oxide addition on the electrical properties of Li2O-B2O3-P2O5 glasses // Journal of power sources, 242 (2013), 91-98 doi:10.1016/j.jpowsour.2013.05.068 (međunarodna recenzija, članak, znanstveni)
Moguš-Milanković, A., Sklepić, K., Blažanović, H., Mošner, P., Vorokhta, M. & Koudelka, L. (2013) Influence of germanium oxide addition on the electrical properties of Li2O-B2O3-P2O5 glasses. Journal of power sources, 242, 91-98 doi:10.1016/j.jpowsour.2013.05.068.
@article{article, year = {2013}, pages = {91-98}, DOI = {10.1016/j.jpowsour.2013.05.068}, keywords = {lithium germano-phosphate glasses, lithium ion conductivity, electrical modulus, dielectric relaxation}, journal = {Journal of power sources}, doi = {10.1016/j.jpowsour.2013.05.068}, volume = {242}, issn = {0378-7753}, title = {Influence of germanium oxide addition on the electrical properties of Li2O-B2O3-P2O5 glasses}, keyword = {lithium germano-phosphate glasses, lithium ion conductivity, electrical modulus, dielectric relaxation} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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