Plasma-assisted self-sharpening of platelet-structured single-crystalline carbon nanocones
Levchenko, I., Ostrikov, K., Long, J. D., & Xu, S. (2007) Plasma-assisted self-sharpening of platelet-structured single-crystalline carbon nanocones. Applied Physics Letters, 91(11), pp. 113115-1.
A mechanism and model for the vertical growth of platelet-structured vertically aligned single-crystalline carbon nanostructures by the formation of graphene layers on a flat top surface are proposed and verified experimentally. It is demonstrated that plasma-related effects lead to self-sharpening of tapered nanocones to form needlelike nanostructures, in a good agreement with the predicted dependence of the radius of a nanocone's flat top on the incoming ion flux and surface temperature. The growth mechanism is relevant to a broad class of nanostructures including nanotips, nanoneedles, and nanowires and can be used to improve the predictability of nanofabrication processes. © 2007 American Institute of Physics.
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|Item Type:||Journal Article|
|Keywords:||Carbon, Nanostructures, Graphene|
|Divisions:||Current > QUT Faculties and Divisions > Science & Engineering Faculty|
|Copyright Owner:||2007 American Institute of Physics|
|Deposited On:||11 Jul 2014 01:00|
|Last Modified:||22 Aug 2014 01:12|
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