Thermoelectric characteristics of gamma-Ag2Te nanoparticle thin films on flexible substrates

摘要

In this study, we synthesized Ag2Te nanoparticles (NPs) in an aqueous solution and investigated the thermoelectric characteristics of Ag2TeNP thin films on bendable substrates. The Ag(2)TeNPs have an average size of 6 nmand a body-centered cubic gamma-phase (or, gamma-Ag2Te), and they exhibit typical p-type thermoelectric behaviors. The Seebeck coefficient and electrical conductivity of a gamma-Ag2TeNP thin film are 1330 mu V/K and 0.037 S/m, respectively, and the power factor is calculated to be 0.66 mu W/mK(2). Furthermore, our bending study shows the stability of the thermoelectric characteristics of gamma-Ag2Te NP thin films after the bending cycles. (C) 2017 Elsevier B.V. All rights reserved.