TY - GEN
T1 - Microscopic conduction behavior analysis on ZrO2-based ion conductors by wideband conductivity measurement
AU - Teranishi, Takashi
AU - Shimizu, Kosuke
AU - Hayashi, Hidetaka
AU - Kishimoto, Akira
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - All contributions to the total conductivity, electrolyte-electrode interfaces, grain boundaries, ion-hopping, and optical phonons, were determined on the 8 mol% yttria-stabilized zirconia (8YSZ) and 8 mol% ytterbia-stabilized zirconia (8YbSZ) ceramics using the wideband conductivity spectroscopy. Complex conductivity spectra from 10-1 Hz to 1014 Hz were successfully obtained. The higher total conductivity of the 8YbSZ ceramics compared to the 8YSZ in wideband frequencies was mainly attributed to difference in the DC conductivity due to universal dielectric response (UDR), σdc; σdc (8YbSZ) > σdc (8YSZ). Other parameters in the UDR and the optical phonon parameters did not greatly influence on the difference in their intrinsic conductivities.
AB - All contributions to the total conductivity, electrolyte-electrode interfaces, grain boundaries, ion-hopping, and optical phonons, were determined on the 8 mol% yttria-stabilized zirconia (8YSZ) and 8 mol% ytterbia-stabilized zirconia (8YbSZ) ceramics using the wideband conductivity spectroscopy. Complex conductivity spectra from 10-1 Hz to 1014 Hz were successfully obtained. The higher total conductivity of the 8YbSZ ceramics compared to the 8YSZ in wideband frequencies was mainly attributed to difference in the DC conductivity due to universal dielectric response (UDR), σdc; σdc (8YbSZ) > σdc (8YSZ). Other parameters in the UDR and the optical phonon parameters did not greatly influence on the difference in their intrinsic conductivities.
KW - Conductivity spectroscopy
KW - Optical phonon modes
KW - Universal dielectric response
UR - http://www.scopus.com/inward/record.url?scp=84883497825&partnerID=8YFLogxK
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U2 - 10.4028/www.scientific.net/KEM.566.141
DO - 10.4028/www.scientific.net/KEM.566.141
M3 - Conference contribution
AN - SCOPUS:84883497825
SN - 9783037857618
T3 - Key Engineering Materials
SP - 141
EP - 144
BT - Electroceramics in Japan XV
PB - Trans Tech Publications Ltd
T2 - 31st Electronics Division Meeting of the Ceramic Society of Japan
Y2 - 28 October 2011 through 29 October 2011
ER -