NDLI: Thermal properties of electrodeposited bismuth telluride nanowires embedded in amorphous alumina

Content Provider	Semantic Scholar
Author	Borca-Tasciuc, Diana-Andra Chen, Gang Prieto, Amy L. Martín-González, M. Candelaria Stacy, Angelica M. Sands, Timothy Ryan, Margaret A. K. Fleurial, Jean-Pierre
Copyright Year	2004
Abstract	Bismuth telluride nanowires are of interest for thermoelectric applications because of the predicted enhancement in the thermoelectric figure-of-merit in nanowire structures. In this letter, we carried out temperature-dependent thermal diffusivity characterization of a 40nm diameter Bi2Te3 nanowires∕alumina nanocomposite. Measured thermal diffusivity of the composite decreases from 9.2×10−7m2s−1 at 150Kto6.9×10−7m2s−1 at 300K and is lower than thermal diffusivity of unfilled alumina templates. Effective medium calculations indicate that the thermal conductivity along nanowires axis is at least an order of magnitude lower than thermal conductivity of the bulk bismuth telluride.
Starting Page	6001
Ending Page	6003
Page Count	3
File Format	PDF HTM / HTML
DOI	10.1063/1.1834991
Alternate Webpage(s)	http://digital.csic.es/bitstream/10261/21442/1/GetPDFServlet.pdf
Alternate Webpage(s)	https://doi.org/10.1063/1.1834991
Volume Number	85
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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