Thermoelectric Properties of Indium-Selenium Nanocomposites Prepared by Mechanical Alloying and Spark Plasma Sintering

Title
Thermoelectric Properties of Indium-Selenium Nanocomposites Prepared by Mechanical Alloying and Spark Plasma Sintering
Authors
임주혁박형호장호원유명재백동수백승협김진상
Keywords
Indium selenide; thermoelectric; mechanical alloying; spark plasma sintering
Issue Date
2012-06
Publisher
Journal of electronic materials
Citation
VOL 41, NO 6, 1354-1359
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 In4Se2.35. In this study, four different compositions of indium-selenium compounds, In2Se3, InSe, In4Se3, and In4Se2.35, 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.
URI
http://pubs.kist.re.kr/handle/201004/45670
ISSN
03615235
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KIST Publication > Article
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