ninithi which is a free and opensource modelling software, can be used to visualize and analyze carbon allotropes used in nanotechnology. You can generate 3-D visualization of Carbon nanotubes, Fullerenes, Graphene and Carbon nanoribbons and analyze the band structures of nanotubes and graphene.
For more information visit http://ninithi.sourceforge.net and download the software free.
Researchers should cite this work as follows:
Chanaka Suranjith Rupasinghe; Mufthas Rasikim (2010), "ninithi," https://nanohub.org/resources/8987.