Few layer graphene based superlattices as efficient thermal insulators

Yuxiang Ni, Yann Chalopin, Sebastian Volz

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


While graphene and few layer graphene (FLG) are considered as having the highest thermal conductivity in their in-plane directions, our molecular dynamics (MD) simulations however show that those systems are also characterized by a superior thermal contact resistance, which could be largely tuned with the layer number when in contact with a silica substrate. Taking advantages of such a resistive interface, MD simulations show that SiO2/FLG superlattices have a thermal conductivity as low as 0.30 W/m K, exhibiting a promising prospect in nano-scale thermal insulation. These findings pave the way for an improved thermal management of nanoscale systems such as thermal barrier coatings and phase change memory materials with atomic-scale super-insulators.

Original languageEnglish (US)
Article number141905
JournalApplied Physics Letters
Issue number14
StatePublished - Sep 30 2013
Externally publishedYes


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