Determination of transport properties in chromium disilicide nanowires via combined thermoelectric and structural characterizations.
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.
Zhou
Feng
F
Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA.
Szczech
Jeannine
J
Pettes
Michael T
MT
Moore
Arden L
AL
Jin
Song
S
Shi
Li
L
D017608:Chromium Compounds / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D004553:Electric Conductivity; D004579:Electron Transport; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D017655:Silicon Compounds / Q000737:chemistry*; D013499:Surface Properties; D013814:Thermal Conductivity
D017608:Chromium Compounds; D046911:Macromolecular Substances; D017655:Silicon Compounds