Thermoelectric characteristics of glass fibers coated with ZnO and Al-doped ZnO

Yoonbeom Park, Kyoungah Cho, Sangsig Kim

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In this study, we investigate the thermoelectric characteristics of glass fibers coated with bare and Al-doped ZnO (ZnO:Al). The ZnO- and ZnO:Al-coated fibers generate maximum Seebeck voltages of −478.3 and −1057.8 μV at temperature differences of 4.5 and 4.3 K, respectively. The Seebeck coefficient increases but the electrical conductivity decreases upon doping of Al ions into ZnO. The grain boundaries present on the ZnO:Al-coated fibers have an adverse effect on their electrical conductivity, but contribute to their increased Seebeck coefficient. The power factor of the ZnO:Al-coated fibers is over three times as large as that of the ZnO-coated fibers.

Original languageEnglish
Pages (from-to)246-249
Number of pages4
JournalMaterials Research Bulletin
Volume96
DOIs
Publication statusPublished - 2017 Dec

Keywords

  • A. Oxides
  • A. Semiconductors
  • D. Thermoelectrics

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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