Superior Thermal Conductivity of Single-Layer Graphene

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• 作者：Alexander A. Balandin ; Suchismita Ghosh ; Wenzhong Bao ; Irene Calizo ; Desalegne Teweldebrhan ; Feng Miao ; Chun Ning Lau
• 刊名：Nano Letters
• 出版年：2008
• 出版时间：March 2008
• 年：2008
• 卷：8
• 期：3
• 页码：902 - 907
• 全文大小：900K
• 年卷期：v.8,no.3(March 2008)
• ISSN：1530-6992

文摘

We report the measurement of the thermal conductivity of a suspended single-layer graphene. The room temperature values of the thermal conductivity in the range ~(4.84 ± 0.44) × 10³ to (5.30 ± 0.48) × 10³ W/mK were extracted for a single-layer graphene from the dependence of the Raman G peak frequency on the excitation laser power and independently measured G peak temperature coefficient. The extremely high value of the thermal conductivity suggests that graphene can outperform carbon nanotubes in heat conduction. The superb thermal conduction property of graphene is beneficial for the proposed electronic applications and establishes graphene as an excellent material for thermal management.