Journal
JOURNAL OF APPLIED PHYSICS
Volume 114, Issue 13, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4824687
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Funding
- World Class University program through the National Research Foundation of Korea
- Ministry of Education, Science and Technology [R31-2008-000-10100-0]
- Center for Advanced Soft Electronics under the Global Frontier Research Program of the Ministry of Education, Science and Technology, Korea [2011-0031638]
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The thermal conductivity of individual ZnTe nanowires (NWs) was measured using a suspended micro-bridge device with built-in resistance thermometers. A collection of NWs with different diameters were measured, and strong size-dependent thermal conductivity was observed in these NWs. Compared to bulk ZnTe, NWs with diameters of 280 and 107 nm showed approximately three and ten times reduction in thermal conductivity, respectively. Such a reduction can be attributed to phonon-surface scattering. The contact thermal resistance and the intrinsic thermal conductivities of the nanowires were obtained through a combination of experiments and molecular dynamic simulations. The obtained thermal conductivities agree well with theoretical predictions. (C) 2013 AIP Publishing LLC.
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