High-Crystalline Single- and Double-Walled Carbon Nanotube Mats Grown by Chemical Vapor Deposition

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• 作者：G. Lamura ; A. Andreone ; Y. Yang ; P. Barbara ; B. Vigolo ; C. H&eacute ; rold ; J.-F. Marê ; ch&eacute ; P. Lagrange ; M. Cazayous ; A. Sacuto ; M. Passacantando ; F. Bussolotti ; M. Nardone
• 刊名：Journal of Physical Chemistry C
• 出版年：2007
• 出版时间：October 25, 2007
• 年：2007
• 卷：111
• 期：42
• 页码：15154 - 15159
• 全文大小：543K
• 年卷期：v.111,no.42(October 25, 2007)
• ISSN：1932-7455

文摘

High-quality mats of single- and double-walled carbon nanotubes (SWNT, DWNT) have been grown by thecatalytic chemical vapor deposition (CVD) technique. Field-emission scanning electron microscopy (FESEM),high-resolution transmission electron microscopy (HRTEM), and Raman spectroscopy revealed densely packedmats made by SWNTs, a small fraction of DWNTs, and bundles of both. Tube diameters range from 0.72 to6 nm. Remarkably, Raman measurements show a very high ratio between the G-band and the D-band peakintensities, a clear indication that structural defects and amorphous carbon are largely absent, without anypost-growth treatment.