Thermoelectric characteristics of nanocomposites made of HgSe and Ag nanoparticles for flexible thermoelectric devices

Junggwon Yun, Kyoungah Cho, Yoonbeom Park, Seunggen Yang, Jinyong Choi, Sangsig Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We synthesized thermoelectric nanocomposites by mixing HgSe nanoparticles (NPs) and Ag NPs in a solution and investigated the thermoelectric properties of the nanocomposite thin films on flexible plastic substrates. The X-ray diffraction patterns and the X-ray photoelectron spectra of the nanocomposites demonstrate that cation-exchange reactions occurred spontaneously in the mixed solution of HgSe and Ag NPs and that the HgSe NPs were completely converted to Ag2Se when the Ag NP content was 20 vol.%. The maximum power factor and the thermoelectric figure of merit were obtained as 75 μW/mK2 and 0.043 at 300 K, respectively, when the Ag NP content was 10 vol.%, which is 100 times higher than that of HgSe NP thin films. In addition, the mechanical stability of the thermoelectric nanocomposite film was confirmed through repeated bending tests. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)683-689
Number of pages7
JournalNano Research
Volume10
Issue number2
DOIs
Publication statusPublished - 2017 Feb 1

Keywords

  • AgSe
  • HgSe
  • Seebeck
  • flexible thermoelectric
  • nanocomposite
  • nanoparticles

ASJC Scopus subject areas

  • Materials Science(all)
  • Electrical and Electronic Engineering

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