Effect of SrTiO<sub>3</sub> Nanoparticles in Conductive Polymer on the Thermoelectric Performance for Efficient Thermoelectrics

We present hybrid organic inorganic materials, namely, SrTiO<sub>3</sub>/polyaniline (PANI) composites, with high thermoelectric performance; samples with various SrTiO<sub>3</sub> contents (10, 20, 30, and 50 wt.%) were prepared. The PANI component was obtained through the p...

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Bibliographic Details
Main Authors: Dabin Park, Hyun Ju, Jooheon Kim
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/12/4/777
Description
Summary:We present hybrid organic inorganic materials, namely, SrTiO<sub>3</sub>/polyaniline (PANI) composites, with high thermoelectric performance; samples with various SrTiO<sub>3</sub> contents (10, 20, 30, and 50 wt.%) were prepared. The PANI component was obtained through the polymerization of aniline monomers, followed by camphosulfonic acid-doping to enhance its electrical conductivity. SrTiO<sub>3</sub>, with a high Seebeck coefficient, was used as the N-type inorganic componenet; it was synthesized via a one-pot solvothermal methods and, then, dispersed into the conductive PANI matrix. The SrTiO<sub>3</sub> content influenced the Seebeck coefficient and electrical conductivity of the resulting composites. The variations in the thermoelectric properties of the SrTiO<sub>3</sub>/PANI composites consequently changed their power factor; at room temperature, the highest value was ~49.6 μW·m/K<sup>2</sup>, which is 17 times larger than that of pure PANI.
ISSN:2073-4360