Thermal Conductivity of ZnO Nanowires Embedded in Poly(methyl methacrylate) Matrix
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概要
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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.
- 2011-01-25
著者
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SHASHKOV Anatoly
Institute of Heat and Mass Transfer
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Kang Tae
Quantum Functional Semiconductor Research Center Dongguk University
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Yuldashev Shavkat
Quantum Functional Semiconductor Research Center Dongguk University
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Igamberdiev Khusan
Quantum-functional Semiconductor Research Center Dongguk University
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Kang Tae
Quantum-Functional Semiconductor Research Center, Dongguk University, Seoul 100-715, Korea
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Cho Hak
Quantum-Functional Semiconductor Research Center, Dongguk University, Seoul 100-715, Korea
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Igamberdiev Khusan
Quantum-Functional Semiconductor Research Center, Dongguk University, Seoul 100-715, Korea
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Shashkov Anatoly
Institute of Heat and Mass Transfer, Minsk 220072, Belarus
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