Two-dimensional phonon transport in supported graphene

Jae Hun Seol; Insun Jo; Arden L. Moore; Lucas Lindsay; Zachary H. Aitken; Michael T. Pettes; Xuesong Li; Zhen Yao; Rui Huang; David Broido; Natalio Mingo; Rodney S. Ruoff; Li Shi

doi:10.1126/science.1184014

Two-dimensional phonon transport in supported graphene

Jae Hun Seol, Insun Jo, Arden L. Moore, Lucas Lindsay, Zachary H. Aitken, Michael T. Pettes, Xuesong Li, Zhen Yao, Rui Huang, David Broido, Natalio Mingo, Rodney S. Ruoff, Li Shi

Research output: Contribution to journal › Article › peer-review

1712 Scopus citations

Abstract

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 pet 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.

Original language	English
Pages (from-to)	213-216
Number of pages	4
Journal	Science
Volume	328
Issue number	5975
DOIs	https://doi.org/10.1126/science.1184014
State	Published - Apr 9 2010
Externally published	Yes

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abstract = "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 pet 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.",

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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

PY - 2010/4/9

Y1 - 2010/4/9

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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 pet 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.

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Two-dimensional phonon transport in supported graphene

Abstract

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