期刊
APPLIED PHYSICS LETTERS
卷 96, 期 20, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3435465
关键词
doping; graphene; hydrogen; molecular dynamics method; nanostructured materials; phonon-impurity interactions; surface roughness; thermal conductivity
资金
- AFOSR/MURI [FA9550-08-1-0407]
- NRI-NIST Institute for Nanoelectronics Dicovery and Exploration (INDEX)
We use equilibrium molecular dynamic simulations to compute thermal conductivity of graphene nanoribbons with smooth and rough edges. We also study effects of hydrogen termination. We find that conductivity is the highest for smooth edges and is essentially the same for zigzag and armchair edges. In the case of rough edges, the thermal conductivity is a strong function of the ribbon width indicating the important effect of phonon scattering from the edge. Hydrogen termination also reduces conductivity by a significant amount. (C) 2010 American Institute of Physics. [doi:10.1063/1.3435465]
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