High-Temperature Electrical Conductivity Measurements on Nanostructured Yttria-Doped Ceria Thin Films in Ozone

ABSTRACTWe report here the results of our study on the properties of iodine-doped C60 thin films by IR and optical absorption, X-ray diffraction, and electrical conductivity measurements. The results show that there is no apparent structural change in the iodine-doped samples at room temperature in comparison with that of the undoped films. However, in the electrical conductivity measurements, an increase of more that one order of magnitude in the room temperature conductivity has been observed in the iodine-doped samples. In addition, while the conductivity of the undoped films shows thermally activated temperature dependence, the conductivity of the iodine-doped films was found to be constant over a fairly wide temperature range (from 20°C to 70°C) exhibiting a metallic feature.

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The impact of etching during microfabrication on the microstructure and the electrical conductivity of gadolinia-doped ceria thin films

Journal of Power Sources ◽

10.1016/j.jpowsour.2011.03.082 ◽

2011 ◽

Vol 196 (15) ◽

pp. 6070-6078 ◽

Cited By ~ 16

Author(s):

Anja Bieberle-Hütter ◽

Patrick Reinhard ◽

Jennifer L.M. Rupp ◽

Ludwig J. Gauckler

Keyword(s):

Thin Films ◽

Electrical Conductivity ◽

Doped Ceria ◽

The Impact

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High Temperature Thermo-Mechanical Properties of Praseodymium Doped Ceria Thin Films Measured Two Ways

Materials Advances ◽

10.1039/d1ma00842k ◽

2022 ◽

Author(s):

Yuxi Ma ◽

Quan Zhou ◽

Jason D. Nicholas

Keyword(s):

Thin Films ◽

Mechanical Properties ◽

High Temperature ◽

Temperature Dependence ◽

Internal Stress ◽

Expansion Coefficient ◽

Mechanical Stability ◽

Doped Ceria ◽

Stress Strain ◽

Chemical Expansion

The temperature dependence of a Mixed Ionic Electronic Conducting (MIEC) material’s thermo-chemical expansion coefficient, biaxial modulus, and/or Young’s modulus are crucial in determining the internal stress, strain, and/or mechanical stability...

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Production and Study of Ca/Sn(II) Metastable Fluoride Ion Conductors

MRS Proceedings ◽

10.1557/proc-481-273 ◽

1997 ◽

Vol 481 ◽

Author(s):

Michael F. Bell ◽

Georges Dénès ◽

Zhimeng Zhu

Keyword(s):

Solid Solution ◽

Electrical Conductivity ◽

High Temperature ◽

Calcium Nitrate ◽

Fluoride Ion ◽

Conductivity Measurements ◽

Ambient Conditions ◽

Reaction Conditions ◽

Density Measurements ◽

Ion Conductors

ABSTRACTPrecipitation reactions from aqueous solutions of calcium nitrate and tin(II) fluoride result in the formation of two metastable phases, depending on the reaction conditions. Crystalline CaSn2F6 and the microcrystalline Ca1-xSnxF2 solid solution are obtained, the latter crystallizing in the cubic fluorite (CaF2) type with total Ca/Sn disorder. Both phases are fluoride ion conductors. Electrical conductivity measurements versus temperature and bulk density measurements show that both phases are far from thermodynamic equilibrium at ambient conditions, and thus are metastable. Both decompose to a mixture of SnF2 and CaF2 at high temperature. In addition, CaSn2F6 is chemically unstable in an aqueous medium, in which it looses SnF2 to give the microcrystalline Ca1-xSnxF2 solid solution.

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High temperature electrical conductivity of epitaxial Gd-doped CeO2 thin films

Solid State Ionics ◽

10.1016/j.ssi.2004.09.034 ◽

2004 ◽

Vol 175 (1-4) ◽

pp. 103-106 ◽

Cited By ~ 42

Author(s):

L CHEN

Keyword(s):

Thin Films ◽

Electrical Conductivity ◽

High Temperature ◽

Doped Ceo2

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Transport Properties of Polyelectrolyte Solutions. Effect of Confinement in Thin Liquid Films

Zeitschrift für Physikalische Chemie ◽

10.1515/zpch-2014-0544 ◽

2015 ◽

Vol 229 (7-8) ◽

Author(s):

Jérôme Delacotte ◽

Dominique Langevin

Keyword(s):

Thin Films ◽

Electrical Conductivity ◽

Transport Properties ◽

Liquid Films ◽

Thin Liquid Films ◽

Conductivity Measurements ◽

Polyelectrolyte Solutions

AbstractThe role of condensed counterions in transport properties, such as electrical conductivity and viscosity, has been investigated with solutions of a flexible polyelectrolyte. Comparisons with existing theories are proposed. Viscosity is strongly affected by confinement in thin films, depending whether polyelectrolyte chains are adsorbed or not at the film surfaces. The role of counterion mobility is however difficult to assess because the measurements are not accurate enough. It is proposed that this role could be tested by electrical conductivity measurements.

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