The thermal conductivities of individual single crystalline intrinsic Si nanowires with diameters of 22, 37, 56, and 115 nm were measured using a microfabricated suspended device over a temperature range of 20–320 K. Although the nanowires had well-defined crystalline order, the thermal conductivity observed was more than two orders of magnitude lower than the bulk value. The strong diameter dependence of thermal conductivity in nanowires was ascribed to the increased phonon-boundary scattering and possible phonon spectrum modification.
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Research Article| September 30 2003
Thermal conductivity of individual silicon nanowires
Special Collection: APL Classic Papers
Deyu Li, Yiying Wu, Philip Kim, Li Shi, Peidong Yang, Arun Majumdar; Thermal conductivity of individual silicon nanowires. Appl. Phys. Lett. 6 October 2003; 83 (14): 2934–2936. https://doi.org/10.1063/1.1616981
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