Structure and Ionic Conductivity of Lithio-Borate Thin Films

1990 ◽  
Vol 210 ◽  
Author(s):  
P. Dzwonkowski ◽  
M. Eddrief ◽  
C. Julien ◽  
M. Balkanski
Keyword(s):  
Thin Films ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
Ionic Conduction ◽  
Complex Impedance ◽  
Oxide System ◽  
Lithium Oxide ◽  
Process Conditions ◽  
Lithium Metaborate ◽  
Evaporation Technique

AbstractThin films of vitreous solid electrolyte in the boron-oxide/lithium oxide system have been grown using a thermal evaporation technique. Solid electrolyte films of composition B2O3-xLi2O with 0.5≤x≤5 are obtained from a mixture of lithium metaborate and lithium oxide in good proportion. Structure and ionic conduction are studied as a function of the glass modifier concentration and process conditions. The structure is investigated by the mid-infrared absorption spectroscopyof films deposited on a silicon wafer. Comparison with bulk materials whose structures are known shows that the films have a similar structure, and exhibit the transformation of boroxol rings into triborate or di-triborate units as the Li2O concentration increases. The ionic conductivity has been studied over wide frequency and temperatureranges using the complex impedance spectroscopy in a sandwiched geometry. The ionic conductivity increases with increasing Li content and exhibits a maximum value for B2O3-3Li2O.

Ionic Conduction Response under Extending-Deformation of β-AgI Thin Films

2018 ◽  
Vol 790 ◽  
pp. 3-8 ◽  
Author(s):  
Shin Ichi Furusawa ◽  
Tomosato Ida
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Activation Energy ◽  
Ionic Conductivity ◽  
Tensile Stress ◽  
Polyethylene Terephthalate ◽  
Ionic Conduction ◽  
Ion Conduction ◽  
Polyethylene Terephthalate Film ◽  
Extension Ratio

Tensile stress was applied to β-AgI thin film prepared on a polyethylene terephthalate film, and the ion conduction response in the direction of the tensile extension was investigated. The ionic conductivity of the β-AgI thin film decreases and the activation energy for ionic conduction increases with increasing extension ratio. This behaviour is attributed to the modulation of the crystal framework by the extension of the AgI thin film.

scholarly journals Fast Diffusion of Iron in Single Crystal Rutile and Iron Doped Rutile

1983 ◽  
Vol 24 ◽  
Author(s):  
J. Sasaki ◽  
N. L. Peterson ◽  
L. C. De Jonghe
Keyword(s):  
Electrical Conductivity ◽  
Ionic Conductivity ◽  
Pressure Dependence ◽  
Ionic Conduction ◽  
Complex Impedance ◽  
Fast Diffusion ◽  
Iron Ions ◽  
Impedance Measurements ◽  
Fe Content ◽  
Shear Structure

ABSTRACTTracer diffusion coefficients of Fe, DFe* in single crystals of rutile and of 0 –2.0% Fe doped rutile were measured. The oxygen pressure dependence of DFe* in pure rutile showed complicated behavior. The values of DFe* may consist of contributions from Fe2+ ions diffusing by an interstitial mechanism and from Fe3+ ions diffusing by an interstitialcy mechanism in cooperation with tetravalent titanium interstitial ions, Tii. The value of DFe* in Fe doped rutile attains a saturation value when the Fe content reaches about 0.1%, D*Fe decreases drastically when the Fe content exceeds about 0.35%. Complex impedance measurements of electrical conductivity indicate the existence of ionic conduction for Fe doped rutile containing less than 0.35% of Fe. The small ionic conductivity relative to the values of D*Fe suggests that only a small fraction of the iron ions are highly mobile. Above 0.35% Fe, the observed drastic decrease in D*Fe may result from the formation of a shear structure In highly doped rutile.

ONE DIMENSIONAL NATURE OF IONIC CONDUCTIVITY IN SELF-FLUX GROWN RbTiOPO4 SINGLE CRYSTALS

2003 ◽  
Vol 17 (03) ◽  
pp. 373-382 ◽  
Author(s):  
C. V. KANNAN ◽  
S. GANESAMOORTHY ◽  
C. SUBRAMANIAN ◽  
P. RAMASAMY
Keyword(s):  
Ionic Conductivity ◽  
Ionic Conduction ◽  
Complex Impedance ◽  
Impedance Measurement ◽  
Dielectric Polarization ◽  
One Dimensional ◽  
Measured Activation Energy ◽  
Conduction Behavior ◽  
Measured Activation ◽  
Complex Impedance Measurement

The ionic conductivity of self-flux grown RbTiOPO 4 single crystal along the crystallographic a, b and c (polar) axes in the frequency range 100 Hz–10 MHz and in the temperature range 300–1140 K has been studied. The measured activation energy indicates the existence of super ionic conduction behavior in RTP crystals and also reveals that the DC electrical conduction and dielectric polarization are governed by the same mechanism. Complex impedance measurement shows the existence of non-Debye type of relaxation in the crystals.

Ionic Conduction Performance of Solid Electrolyte Materials

2010 ◽  
Vol 156-157 ◽  
pp. 799-802
Author(s):  
Ming Zhou ◽  
Yan Wen Tian
Keyword(s):  
Experimental Data ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
Ionic Conduction ◽  
Sol Gel ◽  
Ionic Conductivities ◽  
Microwave Method ◽  
Ionic Conductors ◽  
Base Materials ◽  
Polycrystalline Powder

This experiment composes irreversible cells using ultrafine electrolyte materials and platinum slices, to measure the ionic conductivity the cells at normal temperatures with the help of impedance 1286 spectroscopy. We have calculated the ionic conductivities, which indicate that the ionic conductivities of the merchant LaF3 polycrystalline powder and the powder by microwave method are higher than the ones of LaF3 crystal and the powder by Sol-Gel method, to achieve 10-6 Scm-1, so, they are better ionic conductors at normal temperature and can be used as sensor base materials. The experimental data show that O- participates in ionic conduction.

Montmorillonite (MONT) Complex and their Application

1990 ◽  
Vol 210 ◽  
Author(s):  
Yu Wenhai ◽  
Liu Wanyu
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
Room Temperature ◽  
Ionic Conduction ◽  
Electric Properties ◽  
High Ionic Conductivity ◽  
Polymer Complex ◽  
Solid State Battery ◽  
New Type

AbstractMontmorillonite(Mont) has been proved to be a kind of very promising solid electrolyte in recent years because of its good electric properties. It can be composed by polymer to prepare a mont-polymer complex which has high ionic conductivity and excellent plasticity. The film made of mont-polymer complex with room temperature ionic conduction has been used in solid state battery as solid electrolyte. It may be a new type of function material with futher application.

Effects of Substrate Cooling on the Ionic Conductivity of Ta2O5 Solid-Electrolyte Thin Films Prepared by Reactive Sputtering Using H2O Gas

2019 ◽  
Vol 13 (26) ◽  
pp. 55-60 ◽  
Author(s):  
Yoshio Abe ◽  
Fei Peng ◽  
Yasuhiro Takiguchi ◽  
Midori Kawamura ◽  
Katsutaka Sasaki ◽  
...  
Keyword(s):  
Thin Films ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
Reactive Sputtering

Epitaxial Strain-Controlled Ionic Conductivity in Li-Ion Solid Electrolyte Li0.33La0.56TiO3 Thin Films

2015 ◽  
Vol 15 (5) ◽  
pp. 2187-2191 ◽  
Author(s):  
Jie Wei ◽  
Daisuke Ogawa ◽  
Tomoteru Fukumura ◽  
Yasushi Hirose ◽  
Tetsuya Hasegawa
Keyword(s):  
Thin Films ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
Epitaxial Strain ◽  
Li Ion

Influence of texture and grain misorientation on the ionic conduction in multilayered solid electrolytes – interface strain effects in competition with blocking grain boundaries

2018 ◽  
Vol 20 (14) ◽  
pp. 9269-9280 ◽  
Author(s):  
J. Keppner ◽  
J. Schubert ◽  
M. Ziegner ◽  
B. Mogwitz ◽  
J. Janek ◽  
...  
Keyword(s):  
Thin Films ◽  
Ionic Conductivity ◽  
Grain Boundaries ◽  
Solid Electrolytes ◽  
Ionic Conduction ◽  
Multilayer Thin Films ◽  
Strain Effects ◽  
Interface Strain ◽  
Grain Misorientation

We investigate the relaxation of mismatch induced interface strain as a function of the texture and its influence on the ionic conductivity in YSZ/Er2O3 multilayer thin films.

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