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	Measuring the thermal conductivity of individual carbon nanotubes by the Raman shift method
	Li, Qingwei ; Liu, Changhong ; Wang, Xueshen ; Fan, Shoushan
	2010-10-12 ; 2010-10-12
关键词	ROOM-TEMPERATURE CONDUCTANCE DEPENDENCE Engineering, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied
中文摘要	The thermal contact resistance is a difficult problem that has puzzled many researchers in measuring the intrinsic thermal conductivity of an individual carbon nanotube (CNT). To avoid this problem, a non-contact Raman spectra shift method is introduced, by which we have successfully measured the thermal conductivity (kappa) of an individual single-walled carbon nanotube and a multi-walled carbon nanotube. The measured kappa values are 2400 W m(-1) K-1 and 1400 W m(-1) K-1, respectively. The CNT was suspended over a trench and heated by electricity. The temperature difference between the middle and the two ends of the CNT indicated its intrinsic heat transfer capability. The temperature difference was determined by the temperature-induced shifts of its G band Raman spectra. This new method can eliminate the impact of the thermal contact resistance which was a Gordian knot in many previous measurements.
语种	英语 ; 英语
出版者	IOP PUBLISHING LTD ; BRISTOL ; DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81412]
专题	清华大学
推荐引用方式 GB/T 7714	Li, Qingwei,Liu, Changhong,Wang, Xueshen,et al. Measuring the thermal conductivity of individual carbon nanotubes by the Raman shift method[J],2010, 2010.
APA	Li, Qingwei,Liu, Changhong,Wang, Xueshen,&Fan, Shoushan.(2010).Measuring the thermal conductivity of individual carbon nanotubes by the Raman shift method..
MLA	Li, Qingwei,et al."Measuring the thermal conductivity of individual carbon nanotubes by the Raman shift method".(2010).

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