@article{oai:kutarr.kochi-tech.ac.jp:00000274,
 author = {Hasegawa, Takayuki and Kohno, Hideo},
 issue = {5},
 journal = {Physical Chemistry Chemical Physics},
 month = {Feb},
 note = {We report a novel phenomenon for carbon nanotube growth that results in a new carbon nanotube morphology. A carbon nanotube grown via metal nanoparticle-catalyzed chemical vapor deposition splits into two flattened nanotubes during growth and the two flattened nanotubes merge to form a ring of carbon nanotube/nanoribbon. This novel process is revealed by transmission electron microscopy observations of the carbon nanostructures. We propose that the splitting-and-joining process involves only one metal catalyst nanoparticle and a self-folding mechanism that we have named the origami mechanism to explain the process and the formation of nanoribbons and nanotetrahedra.},
 pages = {3009--3013},
 title = {Splitting and joining in carbon nanotube/nanoribbon/nanotetrahedron growth},
 volume = {17},
 year = {2015}
}