Figure 6From: Carbon nanotubes on nanoporous alumina: from surface mats to conformal pore fillingTEM and Raman characterization. (a, b) High-resolution TEM images of the carbon nanotubes grown on top of the alumina membrane with S1813 photoresist. A relatively thin wall consisting of 10 atomic carbon layers can be seen in (b). (c, d) The Raman spectra of the nanotube grown using C2H4 and C2H2 precursors show D and G bands and a relatively low presence of defects.Back to article page