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

Yoonbeom Park, Kyoungah Cho, Sangsig Kim

Research output: Contribution to journalArticlepeer-review

13 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

Bibliographical note

Funding Information:
This research was supported by the Mid-Career Researcher Program (NRF-2013R1A2A1A03070750 and NRF-2016R1E1A1A02920171), through the National Research Foundation of Korea (NRF) , funded by the Ministry of Education, Science and Technology ; a National Research Foundation of Korea (NRF) Grant funded by the Korean Government (MSIP) (No. NRF-2015R1A5A7037674 ), the Brain Korea 21 Plus Project , and the Korea University Grant .

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

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

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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