Unexpected large thermal rectification in asymmetric grain boundary of graphene
arXiv:1110.3483 · doi:10.1016/j.ssc.2012.07.013
Abstract
We have investigated the lattice thermal transport across the asymmetric tilt grain boundary between armchair and zigzag graphene by nonequilibrium molecular dynamics (NEMD). We have observed significant temperature drop and ultra-low temperature-dependent thermal boundary resistance. More importantly, we find an unexpected thermal rectification phenomenon. The thermal conductivity and Kapitza conductance is direction-dependent. The effect of thermal rectification could be amplified by increasing the difference of temperature imposed on two sides. Our results propose a promising kind of thermal rectifier and phonon diodes based on polycrystalline graphene without delicate manipulation of the atomic structure.
14 pages, 5 figures, accepted by Solid State Communications
References in corpus (11)
- Phononics: Manipulating heat flow with electronic analogs and beyond
- Graphene films with large domain size by a two-step chemical vapor deposition process
- Electronic transport in polycrystalline graphene
- Thermal Conductivity and Thermal Rectification in Graphene Nanoribbons: a Molecular Dynamics Study
- Self-passivating edge reconstructions of graphene
- Macroscopic graphene membranes and their extraordinary stiffness
- Graphene valley filter using a line defect
- Carbon Nanocone: A Promising Thermal Rectifier
- Thermal rectification in carbon nanotube intramolecular junctions: Molecular dynamics calculations
- Chirality- and thickness-dependent thermal conductivity of few-layer graphene: a molecular dynamics study
- Thermal conductivity of epitaxial graphene nanoribbons on SiC: effect of substrate
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