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Effect of substrate modes on thermal transport in supported graphene
Open accessAbstract
We examine thermal transport in graphene supported on SiO${}_{2}$ using molecular dynamics simulations. Coupling to the substrate reduces the thermal conductivity (TC) of supported graphene by an order of magnitude, due to damping of the flexural acoustic (ZA) phonons. However, increasing the strength of the graphene-substrate interaction enhances the heat flow and effective TC along supported graphene, contrary to expectations. The enhancement is due to the coupling of graphene ZA modes to the substrate Rayleigh waves, which linearizes the dispersion and increases the group velocity of the hybridized modes. These findings suggest that the TC of two-dimensional supported graphene is tunable through surface interactions, providing an interesting route for controlled energy flow in nanomaterials.
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Cites
Fast Parallel Algorithms for Short-Range Molecular Dynamics
Plimpton, S. (1995) · Journal of Computational Physics · doi:10.1006/jcph.1995.1039 · Cited by 44,721
Two-Dimensional Phonon Transport in Supported Graphene
Seol, J. H., Jo, I., Moore, A. L., Lindsay, L., Aitken, Z. H., Pettes, M. T., Li, X., Yao, Z., Huang, R., Broido, D., et al. (2010) · Science · doi:10.1126/science.1184014 · Cited by 1,926
Cited by
Lattice vibrational modes and phonon thermal conductivity of monolayer MoS2
Cai, Y., Lan, J., Zhang, G., & Zhang, Y.-W. (2014) · Physical Review B · doi:10.1103/physrevb.89.035438 · Cited by 498
Shen, X., Wang, Z., Wu, Y., Liu, X., He, Y.-B., & Kim, J.-K. (2016) · Nano Letters · doi:10.1021/acs.nanolett.6b00722 · Cited by 382
Phonons and thermal transport in graphene and graphene-based materials
Nika, D. L., & Balandin, A. A. (2017) · Reports on Progress in Physics · doi:10.1088/1361-6633/80/3/036502 · Cited by 359
Bagri, A., Kim, S.-P., Ruoff, R. S., & Shenoy, V. B. (2011) · Nano Letters · doi:10.1021/nl202118d · Cited by 349
Two-dimensional phonon transport in graphene
Nika, D. L., & Balandin, A. A. (2012) · Journal of Physics: Condensed Matter · doi:10.1088/0953-8984/24/23/233203 · Cited by 346
Metadata
- Authors
- Ong, Z.-Y., & Pop, E.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2011-08-12
- Volume
- 84
- Issue
- 7
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W2025588260
- Cited by
- 267
- References
- 2
- FWCI
- 9.61
- Type
- journal article
- Language
- en
- Open access
- green
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