Journal
CURRENT APPLIED PHYSICS
Volume 11, Issue 4, Pages S41-S45Publisher
ELSEVIER
DOI: 10.1016/j.cap.2011.07.007
Keywords
Thermoelectrics; Nanocomposites; Figure of merit; Carbon nanotube
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In this study, n-type Bi-2(Te0.9Se0.1)3 nanocomposites were processed by hot-pressing with dispersion of multiwalled carbon nanotubes (MWCNTs) up to 0.15 vol%. With 0.01 and 0.015 vol% MWCNT dispersion, it was possible to decrease the thermal conductivity of the Bi-2(Te0.9Se0.1)(3) nanocomposite without deteriorating the electrical resistivity. A maximum dimensionless figure-of-merit of 0.98 at 150 degrees C was obtained for the nanocomposite with 0.015 vol% MWCNT dispersion, as compared to 0.88 of the hot-pressed specimen without MWCNT dispersion. (C) 2011 Elsevier B.V. All rights reserved.
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