2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

Heating efficiency of debundled carbon nanotubes compared to carbon black

N.H. Levi and D.L. Carroll
Wake Forest University, US

Keywords:
carbon nanotubes, carbon black, heat efficiency, bundling

Abstract:
This work examines the amount of heat generated by single-wall and multi-wall carbon nanotubes to show how bundling and adequate dispersion of the tubes effects heat generation. Due to their high aspect ratio, nanotubes behave as antenna, and should couple to incident radiation more efficiently, in turn generating heat. Carbon nanotubes have strong absorption in the infrared, where body tissues are most transparent. Therefore, nanotubes are sought for highly-localized thermal ablation therapies. Carbon nanotubes are hydrophobic and bundle easily and this may affect their absorption and heating efficiency. Although nanotubes conduct heat better than carbon black no results have yet shown that nanotubes generate heat better following infrared absorption than other carbon materials. Thus, a comparative analysis of the heat generated by nanotubes versus nano-sized carbon black has been completed to show how nanotube bundling affects the efficiency of nanotube heating. The results of this work indicate that carbon nanotubes must be debundled to heat more effectively than carbon black and that care must be taken to insure that nanotubes do not rebundle following laser application.

Back to Program

Sessions Sunday Monday Tuesday Wednesday Thursday Authors Keywords

Nanotech 2007 Conference Program Abstract

 
 

Names, and logos of other organizations are the property of those organizations and not of NSTI.
This event is not open to the general public and NSTI reserves the right to refuse admission and participation to any individual.