alexa Thickness-dependent thermal conductivity of encased graphene and ultrathin graphite.
Mathematics

Mathematics

Journal of Generalized Lie Theory and Applications

Author(s): Jang W, Chen Z, Bao W, Lau CN, Dames C

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Abstract The thermal conductivity of graphene and ultrathin graphite (thickness from 1 to ∼20 layers) encased within silicon dioxide was measured using a heat spreader method. The thermal conductivity increases with the number of graphene layers, approaching the in-plane thermal conductivity of bulk graphite for the thickest samples, while showing suppression below 160 W/m-K at room temperature for single-layer graphene. These results show the strong effect of the encasing oxide in disrupting the thermal conductivity of adjacent graphene layers, an effect that penetrates a characteristic distance of approximately 2.5 nm (∼7 layers) into the core layers at room temperature. This article was published in Nano Lett and referenced in Journal of Generalized Lie Theory and Applications

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