Dendrimer-assisted controlled growth of carbon nanotubes for enhanced thermal interface conductance
Date of this Version
8-29-2007This document has been peer-reviewed.
Abstract
Multi-walled carbon nanotubes (MWCNTs) with systematically varied diameter distributions and defect densities were reproducibly grown from a modified catalyst structure templated in an amine-terminated fourth-generation poly(amidoamine) (PAMAM) dendrimer by microwave plasma-enhanced chemical vapor deposition. Thermal interface resistances of the vertically oriented MWCNT arrays as determined by a photoacoustic technique reveal a strong correlation with the quality as assessed by Raman spectroscopy. This study contributes not only to the development of an active catalyst via a wet chemical route for structure-controlled MWCNT growth, but also to the development of efficient and low-cost MWCNT-based thermal interface materials with thermal interface resistances 10 mm2 KW−1.
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This document may be found at the following address: http://docs.lib.purdue.edu/nanopub/64/.