High-crystalline single- and double-walled carbon nanotube mats grown by chemical vapor deposition
|Title||High-crystalline single- and double-walled carbon nanotube mats grown by chemical vapor deposition|
|Publication Type||Journal Article|
|Year of Publication||2007|
|Authors||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., and Nardone M.|
|Journal||Journal of Physical Chemistry C|
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.