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Thermal Conductivity of ZnO Nanowires Embedded in Poly(methyl methacrylate) Matrix

Khusan T. IgamberdievDepartment of Thermophysics, Academy of Sciences, Tashkent 700135, UzbekistanSh. U. YuldashevDepartment of Thermophysics, Academy of Sciences, Tashkent 700135, UzbekistanHak Dong ChoQuantum-Functional Semiconductor Research Center, Dongguk University, Seoul 100-715, KoreaTae Won KangQuantum-Functional Semiconductor Research Center, Dongguk University, Seoul 100-715, KoreaA. G. ShashkovInstitute of Heat and Mass Transfer, Minsk 220072, Belarus

Applied Physics Expressjournal2011en

ABI

Annotatsiya

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.

Mavzular

Thermal properties of materials Advanced Thermoelectric Materials and Devices Phase Change Materials Research

Identifikatorlar

DOI: 10.1143/apex.4.015001

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