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

Yoonbeom Park; Kyoungah Cho; Sangsig Kim

doi:10.1016/j.materresbull.2017.03.007

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

Yoonbeom Park, Kyoungah Cho, Sangsig Kim

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	246-249
Number of pages	4
Journal	Materials Research Bulletin
Volume	96
DOIs	https://doi.org/10.1016/j.materresbull.2017.03.007
Publication status	Published - 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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10.1016/j.materresbull.2017.03.007

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title = "Thermoelectric characteristics of glass fibers coated with ZnO and Al-doped ZnO",

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.",

keywords = "A. Oxides, A. Semiconductors, D. Thermoelectrics",

author = "Yoonbeom Park and Kyoungah Cho and Sangsig Kim",

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: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = dec,

doi = "10.1016/j.materresbull.2017.03.007",

language = "English",

volume = "96",

pages = "246--249",

journal = "Materials Research Bulletin",

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TY - JOUR

T1 - Thermoelectric characteristics of glass fibers coated with ZnO and Al-doped ZnO

AU - Park, Yoonbeom

AU - Cho, Kyoungah

AU - Kim, Sangsig

N1 - 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

PY - 2017/12

Y1 - 2017/12

N2 - 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.

AB - 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.

KW - A. Oxides

KW - A. Semiconductors

KW - D. Thermoelectrics

UR - http://www.scopus.com/inward/record.url?scp=85014748889&partnerID=8YFLogxK

U2 - 10.1016/j.materresbull.2017.03.007

DO - 10.1016/j.materresbull.2017.03.007

M3 - Article

AN - SCOPUS:85014748889

SN - 0025-5408

VL - 96

SP - 246

EP - 249

JO - Materials Research Bulletin

JF - Materials Research Bulletin

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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