Abstract
The thermal conductivity of ZnO nanowires (NWs) was determined from the thermal conductivity measurement of the ZnO NW/poly(methyl methacrylate) (PMMA) composite in the temperature range of 30–300 K. The thermal conductivity of ZnO NWs at room temperature is approximately two times lower than that of bulk ZnO. The results of this study show that the thermal conductivity of ZnO NWs is mainly determined by the scattering of phonons on the defects, as well as by the increased phonon-surface boundary scattering. These results could be useful for the design of ZnO nanowire-based devices.
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