PT  - JOURNAL ARTICLE
AU  - Seol, Jae Hun
AU  - Jo, Insun
AU  - Moore, Arden L.
AU  - Lindsay, Lucas
AU  - Aitken, Zachary H.
AU  - Pettes, Michael T.
AU  - Li, Xuesong
AU  - Yao, Zhen
AU  - Huang, Rui
AU  - Broido, David
AU  - Mingo, Natalio
AU  - Ruoff, Rodney S.
AU  - Shi, Li
TI  - Two-Dimensional Phonon Transport in Supported Graphene
AID  - 10.1126/science.1184014
DP  - 2010 Apr 09
TA  - Science
PG  - 213--216
VI  - 328
IP  - 5975
4099  - http://science.sciencemag.org/content/328/5975/213.short
4100  - http://science.sciencemag.org/content/328/5975/213.full
SO  - Science2010 Apr 09; 328
AB  - The reported thermal conductivity (κ) of suspended graphene, 3000 to 5000 watts per meter per kelvin, exceeds that of diamond and graphite. Thus, graphene can be useful in solving heat dissipation problems such as those in nanoelectronics. However, contact with a substrate could affect the thermal transport properties of graphene. Here, we show experimentally that κ of monolayer graphene exfoliated on a silicon dioxide support is still as high as about 600 watts per meter per kelvin near room temperature, exceeding those of metals such as copper. It is lower than that of suspended graphene because of phonons leaking across the graphene-support interface and strong interface-scattering of flexural modes, which make a large contribution to κ in suspended graphene according to a theoretical calculation.