Extremely high thermal conductivity of graphene: Prospects for thermal management applications in nanoelectronic circuits
Extremely high thermal conductivity of graphene: Prospects for thermal management applications in nanoelectronic circuits
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DOI：
10.1063/1.2907977
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发表时间：
2008-04-14
影响因子：
4
通讯作者：
Lau, C. N.
中科院分区：
文献类型：
--
作者：
Ghosh, S.;Calizo, I.;Lau, C. N.
作者报道了对悬浮在Si/SiO2晶片沟槽中的石墨烯的热导率的研究。使用基于显微拉曼光谱的非接触技术进行测量。石墨烯中耗散的功率量和相应的温升由石墨烯的G模式的光谱位置和积分强度确定。对于一组石墨烯薄片，提取出在接近室温的范围内类似于3080-5150 W/m K的极高热导率和类似于775 nm的声子平均自由程。所得结果表明石墨烯作为热管理材料在未来的纳米电子电路中的应用。(C)2008年美国物理学会。
The authors reported on investigation of the thermal conductivity of graphene suspended across trenches in Si/SiO2 wafer. The measurements were performed using a noncontact technique based on micro-Raman spectroscopy. The amount of power dissipated in graphene and corresponding temperature rise were determined from the spectral position and integrated intensity of graphene's G mode. The extremely high thermal conductivity in the range of similar to 3080-5150 W/m K and phonon mean free path of similar to 775 nm near room temperature were extracted for a set of graphene flakes. The obtained results suggest graphene's applications as thermal management material in future nanoelectronic circuits. (C) 2008 American Institute of Physics.