AC/DC conductivity studies of composites of glassy electronic and ionic conductors
PBN-AR
Instytucja
Wydział Fizyki (Politechnika Warszawska)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Solid State Ionics
ISSN
0167-2738
EISSN
Wydawca
Elsevier BV - North-Holland
DOI
Rok publikacji
2016
Numer zeszytu
Strony od-do
277-280
Numer tomu
288
Identyfikator DOI
Liczba arkuszy
0.5
Słowa kluczowe
en
Spectroscopy; X ray diffraction analysis, Glass composites; Heterogeneous materials; Impedance spectroscopy; Mixed conductors; Phosphate glass, Glass
Streszczenia
Język
en
Treść
A series of all-glass composites has been prepared from the ionically conducting silver-phosphate glass 30AgI·35Ag2O·35P2O5 (denoted as I) and the electronically conducting vanadate-phosphate glass 90V2O5·10P2O5 (denoted as E). Component glasses were ground, mixed in five volume ratios (E:I = 3:1, 2:1, 1:1, 1:2, 1:3) and pelletized under pressure. X-ray diffractometry and DSC analyses confirmed an amorphous structure of both component glasses and all final composites. Electrical properties were investigated using DC (Hebb-Wagner polarization method) and AC (impedance spectroscopy) methods. The analysis of the impedance spectra (measured down to μHz) evolution with the proportions of the electronic-to-ionic component was done. Mixed character of the conductivity was confirmed and a synergy effect (charge storage capacity) arising from the interface interactions between glasses was observed. © 2016 Elsevier B.V. All rights reserved.
Inne
System-identifier
WUTb1455c52879d4ab89918e2bed35a3fc6
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