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

Yoonbeom Park, Kyoungah Cho, Sangsig Kim

Research output: Contribution to journalArticle

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
JournalMaterials Research Bulletin
DOIs
Publication statusAccepted/In press - 2016 Oct 13

Fingerprint

glass fibers
Glass fibers
fibers
Seebeck coefficient
Fibers
Seebeck effect
electrical resistivity
temperature gradients
Grain boundaries
grain boundaries
Doping (additives)
Ions
fiberglass
Electric potential
electric potential
ions
Temperature
Electric Conductivity

Keywords

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

ASJC Scopus subject areas

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

Cite this

Thermoelectric characteristics of glass fibers coated with ZnO and Al-doped ZnO. / Park, Yoonbeom; Cho, Kyoungah; Kim, Sangsig.

In: Materials Research Bulletin, 13.10.2016.

Research output: Contribution to journalArticle

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