Thickness-Dependent Thermal Conductivity of Encased Graphene and Ultrathin Graphite
Nano Letters2010Vol. 10(10), pp. 3909–3913
Citations Over TimeTop 10% of 2010 papers
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.
Related Papers
- → Role of graphite precursor in the performance of graphite oxides as ammonia adsorbents(2008)123 cited
- → Thermal conductivity of sawtooth-like graphene nanoribbons: A molecular dynamics study(2012)17 cited
- → Graphite Nanosheets: Thermal Treatment Synthesis and Characterization(2015)4 cited
- Fabrication of Graphene by Cleaving Graphite Chemically(2011)