High-crystalline single- and double-walled carbon nanotube mats grown by chemical vapor deposition

被引:20
作者
Lamura, G.
Andreone, A.
Yang, Y.
Barbara, P.
Vigolo, B.
Herold, C.
Mareche, J.-F.
Lagrange, P.
Cazayous, M.
Sacuto, A.
Passacantando, M.
Bussolotti, F.
Nardone, M.
机构
[1] Univ Naples Federico II, CNR, INFM Coherentia, I-80125 Naples, Italy
[2] Univ Naples Federico II, Dept Phys, CNISM, I-80125 Naples, Italy
[3] Georgetown Univ, Dept Phys, Washington, DC 20057 USA
[4] Univ Nancy 1, Lab Chim Solide Mineral, UMR 7555, F-54506 Vandoeuvre Les Nancy, France
[5] Univ Paris 07, Lab Mat & Phenomenes Quant, F-75231 Paris, France
[6] ESPCI, F-75231 Paris, France
[7] Univ Aquila, Dept Phys, I-67010 Coppito, Italy
关键词
D O I
10.1021/jp073940f
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
High-quality mats of single- and double-walled carbon nanotubes (SWNT, DWNT) have been grown by the catalytic chemical vapor deposition (CVD) technique. Field-emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), and Raman spectroscopy revealed densely packed mats made by SWNTs, a small fraction of DWNTs, and bundles of both. Tube diameters range from 0.72 to 6 nm. Remarkably, Raman measurements show a very high ratio between the G-band and the D-band peak intensities, a clear indication that structural defects and amorphous carbon are largely absent, without any post-growth treatment.
引用
收藏
页码:15154 / 15159
页数:6
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