Please use this identifier to cite or link to this item: https://doi.org/10.1038/ncomms4689
Title: Length-dependent thermal conductivity in suspended single-layer graphene
Authors: Xu, X. 
Pereira, L.F.C.
Wang, Y.
Wu, J.
Zhang, K.
Zhao, X.
Bae, S.
Tinh Bui, C.
Xie, R. 
Thong, J.T.L. 
Hong, B.H.
Loh, K.P. 
Donadio, D.
Li, B. 
Özyilmaz, B.
Issue Date: 16-Apr-2014
Citation: Xu, X., Pereira, L.F.C., Wang, Y., Wu, J., Zhang, K., Zhao, X., Bae, S., Tinh Bui, C., Xie, R., Thong, J.T.L., Hong, B.H., Loh, K.P., Donadio, D., Li, B., Özyilmaz, B. (2014-04-16). Length-dependent thermal conductivity in suspended single-layer graphene. Nature Communications 5 : -. ScholarBank@NUS Repository. https://doi.org/10.1038/ncomms4689
Abstract: Graphene exhibits extraordinary electronic and mechanical properties, and extremely high thermal conductivity. Being a very stable atomically thick membrane that can be suspended between two leads, graphene provides a perfect test platform for studying thermal conductivity in two-dimensional systems, which is of primary importance for phonon transport in low-dimensional materials. Here we report experimental measurements and non-equilibrium molecular dynamics simulations of thermal conduction in suspended single-layer graphene as a function of both temperature and sample length. Interestingly and in contrast to bulk materials, at 300â ‰K, thermal conductivity keeps increasing and remains logarithmically divergent with sample length even for sample lengths much larger than the average phonon mean free path. This result is a consequence of the two-dimensional nature of phonons in graphene, and provides fundamental understanding of thermal transport in two-dimensional materials. © 2014 Macmillan Publishers Limited.
Source Title: Nature Communications
URI: http://scholarbank.nus.edu.sg/handle/10635/82620
ISSN: 20411723
DOI: 10.1038/ncomms4689
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