Thermal and Electrical Properties of 3.2 nm Thin Gold Films Coated on Alginate Fiber
| Autor: | Ranran Chen, Liu Shouting, Yongqiang Mu, Huan Lin, Jing-Kui Zhang, Hua Dong |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Fluid Flow and Transfer Processes Materials science General Engineering 02 engineering and technology Electron 021001 nanoscience & nanotechnology Condensed Matter Physics Thermal diffusivity Thermal conduction 01 natural sciences Thermal conductivity Electrical resistivity and conductivity 0103 physical sciences Thermal General Materials Science Fiber Composite material 0210 nano-technology Electron scattering |
| Zdroj: | Journal of Thermal Science and Engineering Applications. 10 |
| ISSN: | 1948-5093 1948-5085 |
| DOI: | 10.1115/1.4036798 |
| Popis: | The thermal transport in metallic thin films can be reduced by the electron scattering and there are very little available knowledge that can be used to explain the mechanism. In this work, we characterized the thermal and electron transport of 3.2 nm thin gold films coated on alginate fiber by the transient electrothermal (TET) technique. The results reveal that the thermal and electrical conductivities are reduced significantly from the respective values of bulk material by 76.2% and 93.9%. At the same time, the Lorenz number is calculated as 8.66 × 10−8 W Ω K−2 and it is almost three times increased from the value of bulk material. The intrinsic thermal diffusivity of alginate fiber is 3.25 × 10−7 m2 s−1 and the thermal conductivity is 0.51 W m−1 K−1. |
| Databáze: | OpenAIRE |
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