Abstract

For high-efficiency wearable power generator, we have investigated the ZnO nanostructures grown on cotton fabric (CF) as a novel flexible thermoelectric material. We have fabricated ZnO nanostructures on CF by two-step growth method consisting of a seed creation process and a nanostructure growth process. It has been confirmed from ultraviolet transmittance spectra that the ZnO nanostructures are strongly fixed on the CF even after laundering them ten times. In the present study, ZnO nanopillar-nanosheet composites were formed on CF by the two-step growth method. By means of an ac calorimetric method, the thermal diffusivity of the ZnO nanostructure/CF sample was evaluated to be 1.4x10-4m2/s.

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