Thermal conduction and rectification in few-layer graphene Y Junctions
2011; Royal Society of Chemistry; Volume: 3; Issue: 11 Linguagem: Inglês
10.1039/c1nr10945f
ISSN2040-3372
Autores Tópico(s)Graphene research and applications
ResumoBy using molecular dynamics simulations, we have studied heat flux in graphene Y junctions with lengths of 16.7 nm. It is found that the heat flux runs preferentially from the branches to the stem, which demonstrates an obvious thermal rectification effect in these asymmetric graphene ribbons. More interesting, compared to single-layer graphene Y junctions, a larger rectification ratio can be achieved in double-layer structures, due to the presence of layer-layer interactions. Combined with the availability of high quality few-layer graphene materials, our results shed light on heat conduction in graphene nanoribbons and may open up few-layer graphene applications in thermal management of nano electronics.
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