Web Release Date: May 18,
Determination of Transport Properties in Chromium Disilicide Nanowires via Combined Thermoelectric and Structural Characterizations
and
Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, and Center for Nano and Molecular Science and Technology, The University of Texas at Austin, Austin, Texas 78712
Received March 14, 2007
Revised April 30, 2007
Abstract:
The Seebeck coefficient, electrical conductivity, and thermal conductivity of individual chromium disilicide nanowires were characterized using a suspended microdevice and correlated with the crystal structure and growth direction obtained by transmission electron microscopy on the same nanowires. The obtained thermoelectric figure of merit of the nanowires was comparable to the bulk values. We show that combined Seebeck coefficient and electrical conductivity measurements provide an effective approach to probing the Fermi Level, carrier concentration and mobility in nanowires.
Download the full text: PDF | HTML
