期刊
SUSTAINABLE ENERGY & FUELS
卷 6, 期 13, 页码 3158-3168出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2se00403h
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资金
- Universite du Littoral Cote d'Opale
- Universite de Lille
This study presents a novel method for improving the thermoelectric properties of the polymer PEDOT:PSS by using titanium dioxide quantum dot decorated graphene oxide (TQDGO). The results show that the thin films have better thermoelectric performance compared to bulk pellets.
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 mu W 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.
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