Thermoelectric properties of indium-selenium nanocomposites prepared by mechanical alloying and spark plasma sintering

Ju Hyuk Yim, Hyung-Ho Park, Ho Won Jang, Myong Jae Yoo, Dong Su Paik, Seunghyub Baek, Jin Sang Kim

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Indium-selenium-based compounds have received much attention as thermoelectric materials since a high thermoelectric figure of merit of 1.48 at 705 K was observed in In 4Se 2.35. In this study, four different compositions of indium-selenium compounds, In 2Se 3, InSe, In 4Se 3, and In 4Se 2.35, were prepared by mechanical alloying followed by spark plasma sintering. Their thermoelectric properties such as electrical resistivity, Seebeck coefficient, and thermal conductivity were measured in the temperature range of 300 K to 673 K. All the In-Se compounds comprised nanoscaled structures and exhibited n-type conductivity with Seebeck coefficients ranging from -159 μV K -1 to -568 μV K -1 at room temperature.

Original languageEnglish
Pages (from-to)1354-1359
Number of pages6
JournalJournal of Electronic Materials
Volume41
Issue number6
DOIs
Publication statusPublished - 2012 Jun 1

Fingerprint

Indium
Spark plasma sintering
Seebeck coefficient
Mechanical alloying
Selenium
Seebeck effect
sparks
selenium
alloying
indium
Nanocomposites
nanocomposites
sintering
Selenium compounds
selenium compounds
Selenium Compounds
thermoelectric materials
figure of merit
Thermal conductivity
thermal conductivity

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

Yim, Ju Hyuk ; Park, Hyung-Ho ; Jang, Ho Won ; Yoo, Myong Jae ; Paik, Dong Su ; Baek, Seunghyub ; Kim, Jin Sang. / Thermoelectric properties of indium-selenium nanocomposites prepared by mechanical alloying and spark plasma sintering. In: Journal of Electronic Materials. 2012 ; Vol. 41, No. 6. pp. 1354-1359.
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Thermoelectric properties of indium-selenium nanocomposites prepared by mechanical alloying and spark plasma sintering. / Yim, Ju Hyuk; Park, Hyung-Ho; Jang, Ho Won; Yoo, Myong Jae; Paik, Dong Su; Baek, Seunghyub; Kim, Jin Sang.

In: Journal of Electronic Materials, Vol. 41, No. 6, 01.06.2012, p. 1354-1359.

Research output: Contribution to journalArticle

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T1 - Thermoelectric properties of indium-selenium nanocomposites prepared by mechanical alloying and spark plasma sintering

AU - Yim, Ju Hyuk

AU - Park, Hyung-Ho

AU - Jang, Ho Won

AU - Yoo, Myong Jae

AU - Paik, Dong Su

AU - Baek, Seunghyub

AU - Kim, Jin Sang

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AB - Indium-selenium-based compounds have received much attention as thermoelectric materials since a high thermoelectric figure of merit of 1.48 at 705 K was observed in In 4Se 2.35. In this study, four different compositions of indium-selenium compounds, In 2Se 3, InSe, In 4Se 3, and In 4Se 2.35, were prepared by mechanical alloying followed by spark plasma sintering. Their thermoelectric properties such as electrical resistivity, Seebeck coefficient, and thermal conductivity were measured in the temperature range of 300 K to 673 K. All the In-Se compounds comprised nanoscaled structures and exhibited n-type conductivity with Seebeck coefficients ranging from -159 μV K -1 to -568 μV K -1 at room temperature.

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