Dear Biswajyoti Mukherjee,

if you want to try to design some simple carbon-based nanostructures you can use Nanotube Modeler, link is given below for a trail version, however, you can manage to design various structures with a good result. I personally find this program very useful, you can draw SWCNT and MWCNT, as well as graphene sheets or nanocones structures.

Best regards,

Adam Moyseowicz

http://www.jcrystal.com/products/wincnt/

Dear Biswajyoti Mukherjee,

if you want to try to design some simple carbon-based nanostructures you can use Nanotube Modeler, link is given below for a trail version, however, you can manage to design various structures with a good result. I personally find this program very useful, you can draw SWCNT and MWCNT, as well as graphene sheets or nanocones structures.

Best regards,

Adam Moyseowicz

http://www.jcrystal.com/products/wincnt/

Hi,

There are so many free software's are available in online... By googling, you will get it..

For nanotube,

https://web.archive.org/web/20090327223749/http://k.1asphost.com:80/tubeasp/tubeASP.asp

http://turin.nss.udel.edu/research/tubegenonline.html

http://www.photon.t.u-tokyo.ac.jp/~maruyama/wrapping3/wrapping.html

etc.,

http://www.ks.uiuc.edu/Research/vmd/plugins/nanotube/