Issue 13, 2022

Synthesis of quantum dot-based polymer nanocomposites: assessment of their thermoelectric performances

Abstract

The polymer poly(3,4-ethylene dioxythiophene):polystyrene sulfonate (PEDOT:PSS) has been extensively studied due to its excellent electrical conductivity. However, until now, there have only been a few studies on quantum dot embedded polymers for thermoelectric (TE) applications. The current study describes a novel method for improving the TE properties of the polymer PEDOT:PSS by using titanium dioxide quantum dot decorated graphene oxide (TQDGO). The electrical conductivity and the Seebeck coefficient were measured to investigate the TE properties. In addition, their performances in thin films were compared with that of bulk pellets and found that the thin films enable better TE performance than their bulk counterparts. A maximum power factor of 91.26 μW m−1 K−2 was attained using a 2 wt% TQDGO/PEDOT:PSS thin film. The improved performance of the thin films was ascribed to the creation of longer conducting routes, which led to an increase in crystallinity, as confirmed by X-ray diffraction. Additional arguments are presented in the paper's discussion part.

Graphical abstract: Synthesis of quantum dot-based polymer nanocomposites: assessment of their thermoelectric performances

Supplementary files

Article information

Article type
Paper
Submitted
22 Mar 2022
Accepted
25 May 2022
First published
25 May 2022

Sustainable Energy Fuels, 2022,6, 3158-3168

Synthesis of quantum dot-based polymer nanocomposites: assessment of their thermoelectric performances

S. Shisodia, B. Duponchel, G. Leroy, A. Hadj Sahraoui, D. P. Singh, C. Poupin, L. Tidahy, R. Cousin, P. Ropa and M. Depriester, Sustainable Energy Fuels, 2022, 6, 3158 DOI: 10.1039/D2SE00403H

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