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.
Thermal and Electrical Properties of 3.2 nm Thin Gold Films Coated on Alginate Fiber
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received January 14, 2017; final manuscript received March 23, 2017; published online July 25, 2017. Assoc. Editor: Jingchao Zhang.
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Dong, H., Chen, R., Mu, Y., Liu, S., Zhang, J., and Lin, H. (July 25, 2017). "Thermal and Electrical Properties of 3.2 nm Thin Gold Films Coated on Alginate Fiber." ASME. J. Thermal Sci. Eng. Appl. February 2018; 10(1): 011012. https://doi.org/10.1115/1.4036798
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