Tertiary alkylamines as sensitizers for (+) charge injection from selenium into n-Dodecane and as ionic (+) charge carriers in n-Dodecane

1979 ◽  
Vol 7 ◽  
pp. 293-299 ◽  
Author(s):  
G.J. Reinis ◽  
P.J. Cressman
Keyword(s):  
Charge Injection ◽  
Charge Carriers ◽  
Ionic Charge

Composition-Dependent Electrical Conductivity of Ionic-Electronic Composite

1997 ◽  
Vol 500 ◽  
Author(s):  
M. Park ◽  
G. M. Choi
Keyword(s):  
Electrical Conductivity ◽  
Electrical Properties ◽  
Electromotive Force ◽  
Composition Dependence ◽  
Force Measurement ◽  
Ionic Transport ◽  
Charge Carriers ◽  
Stabilized Zirconia ◽  
Ionic Charge ◽  
Polarization Technique

ABSTRACTComposition. dependence of electrical conductivity of ionic-electronic composite was camined using yttria(8mol%) stabilized zirconia-NiO composites. The contributions of ectronic and ionic charge carriers to the electrical conductivity were determined by Hebb-Vagner polarization technique and electromotive force measurement of galvanic cell. Up to 6 sol% NiO addition, the conductivity decreased since the electronic NiO acted as an insulator in onic matrix. However the ionic transport was dominant until NiO content reaches 26 vol%. Mixed conduction was observed between 26 and 68 vol% of NiO. The effects of composition on he electrical properties were explained by the microstructure and thus by the distribution of two hases.

Charge Transport Properties of a Partially Reduced V2O5 Xerogel Intercalated with a Polymer Electrolyte

1995 ◽  
Vol 393 ◽  
Author(s):  
Joyce Albritton Thomas ◽  
Grant M. Kloster ◽  
D. Shriver ◽  
C. R. Kannewurf
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Polymer Electrolyte ◽  
Variable Temperature ◽  
Sol Gel ◽  
Electronic Conductivity ◽  
Charge Carriers ◽  
Electronic Charge ◽  
Ionic Charge ◽  
Intimate Contact

ABSTRACTRecently, there has been considerable interest in advanced materials and processing techniques for practical applications. V2O5 xerogels have generated much attention because they are layered materials that undergo reversible redox intercalation with lithium. The sol-gel process has been used to intercalate V2O5 xerogels with the polymer electrolyte, oxymethylene linked poly(ethylene oxide) - lithium triflate [(a-PEO)n(LiCF3SO3)]. The resulting nanocomposite is a mixed ionic-electronic conductor in which the ionic charge carriers in the polymer electrolyte are in intimate contact with the electronic charge carriers in the V205 xerogel. Variable-temperature electronic conductivity and thermoelectric power measurements have been performed to examine the charge transport properties.

scholarly journals Synthesis of p -and n-type Gels Doped with Ionic Charge Carriers

2010 ◽  
Vol 5 (3) ◽  
pp. 559-565 ◽  
Author(s):  
E. Alveroglu ◽  
Y. Yilmaz
Keyword(s):  
Charge Carriers ◽  
Ionic Charge

Microstructural Aspects of the Ionic Transport Properties of Strontium-Substituted Lanthanum Cobaltites

2002 ◽  
Vol 756 ◽  
Author(s):  
W. Sitte ◽  
E. Bucher ◽  
W. Preis ◽  
I. Papst ◽  
W. Grogger ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Charge Carriers ◽  
Log P ◽  
Conductivity Measurements ◽  
Ionic Charge ◽  
Galvanostatic Polarization ◽  
Vacancy Ordering ◽  
Polarization Technique ◽  
Electron Microscopical ◽  
Distinct Maximum

ABSTRACTThe ionic conductivity and microstructure of selected compositions of the solid solution La1-xSrxCoO3-δ (LSC) were examined with respect to possible vacancy ordering phenomena. Homogeneous samples of LSC were prepared by the glycine nitrate process. The ionic conductivity was obtained as a function of the oxygen partial pressure (-3.5 ≤ log[p(O2)/atm] ≤ 0.5) using a recently developed galvanostatic polarization technique. At 825°C the p(O2)-dependence of the ionic conductivity of La1-xSrxCoO3-° (x = 0.4 and 0.6) shows a distinct maximum. Although this behavior has yet to be explained unambiguously it is indicative of decreasing mobility of ionic charge carriers, e. g. due to cooperative vacancy ordering. From the temperature dependence of the ionic conductivity of La1-xSrxCoO3-° (x = 0.6) activation energies at constant nonstoichiometry (0.20 ≤ ° ≤ 0.28) were obtained. As vacancy association and microstructure are presumed to play a significant role we combined the results of ionic conductivity measurements and electron microscopical investigations. HRTEM images revealed a superstructure within microdomains of about 100 nm in size.

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