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DOI	10.1126/science.273.5274.483
	Crystalline ropes of metallic carbon nanotubes
	Thess A.; Lee R.; Nikolaev P.; Dai H.; Petit P.; Robert J.; Xu C.; Lee Y.H.; Kim S.G.; Rinzler A.G.; Colbert D.T.; Scuseria G.E.; Tománek D.; Fischer J.E.; Smalley R.E.
发表日期	1996
ISSN	0036-8075
起始页码	483
结束页码	487
卷号	273 期号:5274
英文摘要	Fullerene single-wall nanotubes (SWNTs) were produced in yields of more than 70 percent by condensation of a laser-vaporized carbon-nickel-cobalt mixture at 1200°. X-ray diffraction and electron microscopy showed that these SWNTs are nearly uniform in diameter and that they self-organize into 'ropes,' which consist of 100 to 500 SWNTs in a two-dimensional triangular lattice constant of 17 angstroms. The x-ray form factor is consistent with that of uniformly charged cylinders 13.8 ± 0.2 angstroms in diameter. The ropes were metallic, with a single-rope resistivity of <10-4 ohm- centimeters at 300 kelvin. The uniformity of SWNT diameter is attributed to the efficient annealing of an initial fullerene tubelet kept open by a few metal atoms; the optimum diameter is determined by competition between the strain energy of curvature of the graphene sheet and the dangling-bond energy of the open edge, where growth occurs. These factors strongly favor the metallic (10,10) tube with C(5v) symmetry and an open edge stabilized by triple bonds.
英文关键词	carbon; cobalt; graphite; metal; nickel; article; chemical bond; crystal structure; laser; molecular size; polymerization; priority journal; scanning electron microscopy; transmission electron microscopy; vaporization; X ray diffraction
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245721
推荐引用方式 GB/T 7714	Thess A.,Lee R.,Nikolaev P.,et al. Crystalline ropes of metallic carbon nanotubes[J],1996,273(5274).
APA	Thess A..,Lee R..,Nikolaev P..,Dai H..,Petit P..,...&Smalley R.E..(1996).Crystalline ropes of metallic carbon nanotubes.Science,273(5274).
MLA	Thess A.,et al."Crystalline ropes of metallic carbon nanotubes".Science 273.5274(1996).