Enhanced thermoelectric properties of Sb2Te3-graphene nanocomposite. (22nd May 2019)

• Record Type: Journal Article
• Authors: Kumar, Sunil; Faraz, Mohd; Khare, Neeraj
• Is Part Of: Materials research express. Volume 6:Number 8(2019)
• Publication Date: 2019-05-22
• Subjects: graphene -- Sb2Te3 -- seebeck coefficient -- electrical conductivity; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/ab1d1f
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: Sb2 Te3 and Sb2 Te3 -Graphene (RGO) nanocomposite have been synthesized using the hydrothermal method, and their electrical and thermal properties have been investigated. A ~29% enhancement in the figure of merit is observed for Sb2 Te3 nanosheets after incorporation of graphene which is attributed to the increase in the carrier mobility and decrease in the lattice thermal conductivity of the nanocomposite due to the presence of the RGO. Kelvin probe force microscopy study revealed a reduction in the interface barrier of the nanocomposite resulting in the enhancement in the conductivity.