Placidus B Amama et al 2007 Nanotechnology 18 385303 doi:10.1088/0957-4484/18/38/385303
Placidus B Amama1,4, Baratunde A Cola1,2, Timothy D Sands1,3, Xianfan Xu1,2 and Timothy S Fisher1,2
Show affiliationsMulti-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 K W−1.
81.16.-c Methods of nanofabrication and processing
81.15.Gh Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, etc.)
78.20.Hp Piezo-, elasto-, and acoustooptical effects; photoacoustic effects
Condensed matter: electrical, magnetic and optical
Issue 38 (26 September 2007)
Received 6 July 2007
Published 29 August 2007
Placidus B Amama et al 2007 Nanotechnology 18 385303
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