Skip to main content
. 2013 Aug 5;3:2353. doi: 10.1038/srep02353

Figure 1. High-resolution TEM images of graphene layers grown on SWCNTs.

Figure 1

(a), Pristine SWCNT bundles prior to graphene growth. (b), (c), 1–3 layers of graphene grown locally on SWCNT surfaces. (d), A thickened CNT with a cone-shaped morphology. (e–h), Thickened nanotubes with different cap morphologies. The tube in (f) contains two SWCNTs in the core. There is a small gap in the cap of the tube in (g). The cap of the tube in (h) is open. (i), A section of a thickened nanotube with two SWCNTs in the core. The growth times for the thickened nanotubes in (b) through (i) are 3 min (b, c), 5 min (d), 8 min (e–g), and 10 min (h, i). The scale bars are 5 nm.