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Band Engineered P-type RGO-CdS-PANI Ternary Nanocomposites for Thermoelectric Applications

Abstract

AA ternary hybrid nanocomposite of RGO-CdS-Polyaniline (PANI) is prepared by a simple two staged in-situ method for its thermoelectric studies. For this purpose, CdS quantum dots were first prepared with varying concentrations in the presence of reduced graphene oxide to form RGO-CdS nanocomposites using 3-mercaptopropionic acid as a linker. Polyaniline was then prepared in-situ in presence of RGO-CdS nanocomposites to eventually obtain RGO-CdS-PANI nanocomposites. The electrical conductivity, seebeck coefficient and power factor of the RGO-CdS-PANI nanocomposites were calculated with various loading of RGO-CdS nanocomposite in PANI. The final RGO-CdS-PANI nanocomposites delivered high electric conductivity in the order of 105 S/m and showed strong re-dispersion in DMF and ethanol. The effective band alignment and decreased thermal conductivity in RGO-CdS-PANI nanocomposite resulted in p-type behaviour and high power factor value.

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Publication details

The article was received on 14 Jun 2017, accepted on 06 Aug 2017 and first published on 07 Aug 2017


Article type: Paper
DOI: 10.1039/C7SE00290D
Citation: Sustainable Energy Fuels, 2017, Accepted Manuscript
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    Band Engineered P-type RGO-CdS-PANI Ternary Nanocomposites for Thermoelectric Applications

    P. V. More, C. Hiragond, A. Dey and P. K. Khanna, Sustainable Energy Fuels, 2017, Accepted Manuscript , DOI: 10.1039/C7SE00290D

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