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Applicant:
Indian Institute of Technology (IIT) Patna 
Author:
Ashutosh Kumar, D. Sivaprahsam, Ajay D. Thakur 
Corresponding Authors:
Ajay D Thakur 
DOI #:
https://doi.org/10.1016/j.jallcom.2017.11.334 
Title:
Improvement of thermoelectric properties of lanthanum cobaltate by Sr and Mn co-substitution 
Journal:
Journal of Alloys and Compounds 
Year:
2018 
Volume:
735 
Page:
1787 
Keywords:
Powders: solid-state reaction, Thermal conductivity, Electrical conductivity, Perovskites 
Abstract:
We report thermoelectric (TE) properties of Sr and Mn co-substituted LaCoO3system from room tem-perature to 700K. Sr-substitutions at La and Mn at Co site in LaCoO3improves the electrical conductivity(s). Thermal conductivity (k) of all the samples increases with the increase in temperature but decreaseswith the substitution in LaCoO3. An estimation of the electronic thermal conductivity (ke) suggests adominant phonon contribution to thermal conductivity in this system. A maximum value of thefigure ofmerit is 0.14 at 480 K for La0.95Sr0.05Co0.95Mn0.05O3 
Entered by:
Venkata Dantham on 2020-08-02 
 
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