Nano Archive

Factors affecting synthesis of single wall carbon nanotubes in arc discharge

Keidar, Michael (2007) Factors affecting synthesis of single wall carbon nanotubes in arc discharge. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 40 (8). pp. 2388-2393.

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Official URL: http://www.iop.org/EJ/abstract/0022-3727/40/8/S18

Abstract

In this paper a model of single wall carbon nanotube (SWNT) interactions with thermal plasma is developed. Several effects such as momentum, charge and energy transfer between the SWNT and plasma are considered. It is shown that the SWNT charge and potential with respect to the plasma, as well as SWNT aspect ratio, depend on plasma density and electric field in the interelectrode gap. For instance, the SWNT charge changes from negative to positive value with electron density decrease. This model suggests several ways to improve the controllability of SWNT synthesis in arc discharge, such as an increase in plasma density and the application of an electric field. It is predicted that higher plasma density in the SWNT formation region and electric field lead to the formation of SWNT with a very high aspect ratio.

Item Type:Article
Subjects:Physical Science > Nano objects
Physical Science > Quantum phenomena
ID Code:3190
Deposited By:Anuj Seth
Deposited On:26 May 2009 11:49
Last Modified:26 May 2009 11:49

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