scholarly journals The Effect of Defect Structure on Electrical Conductivity and Thermoelectric Power of La2-xSrxCuO4-δ at High Temperatures

2000 ◽  
Vol 68 (6) ◽  
pp. 507-514 ◽  
Author(s):  
Hideki KANAI ◽  
Takuya HASHIMOTO ◽  
Hiroaki TAGAWA ◽  
Junichiro MIZUSAKI
Keyword(s):  
Electrical Conductivity ◽  
Thermoelectric Power ◽  
High Temperatures ◽  
Defect Structure

Ruthenium Doped Gadolinium Titanate: Effects of a Variable Valent Acceptor on Ionic and Electronic Conduction

1992 ◽  
Vol 293 ◽  
Author(s):  
M.A. Spears ◽  
H.L. Tuller
Keyword(s):  
Electrical Conductivity ◽  
Thermoelectric Power ◽  
Defect Structure ◽  
Oxygen Vacancies ◽  
Ionic Conduction ◽  
Electronic Conductivity ◽  
Electronic Conduction ◽  
Defect Band ◽  
Electron Migration

AbstractWe have investigated ruthenium doped gadolinium titanate, Gd2(RuxTi1-x)2O7-δ with 0 ≤ x ≤ 0.2, to determine the role of variable valent Ru in influencing the defect structure and transport properties of the pyrochlore host. We have developed a defect chemical model to interpret electrical conductivity, thermoelectric power, and thermogravimetry data. We have found that Ru acts as an acceptor compensated in large part by oxygen vacancies, resulting in enhanced ionic conduction at low values of x. For larger values (x ≈ 0.05), electronic conductivity predominates which we attribute to electron migration by hopping through a Ru-derived defect band.

Electrical conductivity and defect structure of pure and Li-doped CoO at high temperatures

1987 ◽  
Vol 17 (6) ◽  
pp. 567-576 ◽  
Author(s):  
F. Gesmundo ◽  
O. Paladino ◽  
V. Buscaglia ◽  
G. Petot-Ervas
Keyword(s):  
Electrical Conductivity ◽  
High Temperatures ◽  
Defect Structure

scholarly journals Oxygen vacancy doping of hematite analyzed by electrical conductivity and thermoelectric power measurements

2017 ◽  
Vol 1 (6) ◽  
Author(s):  
Jan Mock ◽  
Benjamin Klingebiel ◽  
Florian Köhler ◽  
Maurice Nuys ◽  
Jan Flohre ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Oxygen Vacancy ◽  
Thermoelectric Power ◽  
Power Measurements ◽  
Vacancy Doping

Metal-like electrical conductivity in LaxSr2−xTiMoO6 oxides for high temperature thermoelectric power generation

2017 ◽  
Vol 46 (18) ◽  
pp. 5872-5879 ◽  
Author(s):  
Mandvi Saxena ◽  
Tanmoy Maiti
Keyword(s):  
Power Generation ◽  
Electrical Conductivity ◽  
High Temperature ◽  
Energy Conversion ◽  
Thermoelectric Power ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency ◽  
Power Generators ◽  
Thermoelectric Power Generation

Increasing electrical conductivity in oxides, which are inherently insulators, can be a potential route in developing oxide-based thermoelectric power generators with higher energy conversion efficiency.

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