2015-05-042015-05-042013-08-13Hauge, Robert H. and Xu, Ya-Qiong, "Production of vertical arrays of small diameter single-walled carbon nanotubes." Patent US8506921B2. issued 2013-08-13. Retrieved from https://hdl.handle.net/1911/80132.https://hdl.handle.net/1911/80132A hot filament chemical vapor deposition method has been developed to grow at least one vertical single-walled carbon nanotube (SWNT). In general, various embodiments of the present invention disclose novel processes for growing and/or producing enhanced nanotube carpets with decreased diameters as compared to the prior art.16 ppengUtility patentUS8506921B2