CuO decorated MoS2 nanostructures grown on carbon fabric with enhanced power factor for wearable thermoelectric application

Transition Metal Dichalcogenides (TMDs) especially molybdenum disulfide (MoS2) benefited from its low thermal conductivity and a variety of transport behavior are highly preferred as a candidate for thermo-electric (TE) application. However, MoS2 has a low electrical conductivity that hinders the thermoelectric performance which can be overcome by several factors. In this work, we have grown MoS2 on carbon fabric (CF) and decorated it with copper oxide (CuO) using the hydrothermal method followed by the subsequent facile spray deposition method. The structural and morphological analysis confirmed the formation of pristine MoS2/CF and CuO decorated MoS2/CF. The TE properties of pristine MoS2/CF and CuO decorated MoS2/CF has been investigated from the temperature ranging from 303 to 373 K. The analysis showed that the Seebeck coefficient is gradually increasing with an increase in the concentration of CuO. The electrical conductivity, Seebeck coefficient, and power factor of the sample C3 (15 mg of CuO) is around 95.67 Sm-1, 16.5 mu V/K, 0.026 mu W cm(-1) K(-2 )at 373 K, which was 4.37, 1.15, and 6.5 times higher than that of pristine MoS2/ CF, respectively. (C) 2022 Published by Elsevier B.V.

Automated summary

Transition Metal Dichalcogenides (TMDs), especially molybdenum disulfide (MoS2), are highly preferred as a candidate for thermo-electric (TE) applications due to their low thermal conductivity. However, their low electrical conductivity hinders the thermoelectric performance. In this study, MoS2 was grown on carbon fabric (CF) and decorated with copper oxide (CuO) using hydrothermal and spray deposition methods. The results showed that the addition of CuO significantly improved the thermoelectric properties of MoS2.