Dendrimer-assisted controlled growth of carbon nanotubes for enhanced thermal interface conductance

Author

• Placidus B. Amama, Birck Nanotechnology Center, Purdue UniversityFollow
• Baratunde A. Cola, Birck Nanotechnology Center, School of Mechanical Engineering, Purdue UniversityFollow
• Timothy D. Sands, Purdue UniversityFollow
• Xianfan Xu, Birck Nanotechnology Center, School of Materials Engineering, Purdue UniversityFollow
• Timothy Fisher, Purdue UniversityFollow

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.

Comments

Online at stacks.iop.org/Nano/18/385303

Date of this Version

8-29-2007

Recommended Citation

Amama, Placidus B.; Cola, Baratunde A.; Sands, Timothy D.; Xu, Xianfan; and Fisher, Timothy, "Dendrimer-assisted controlled growth of carbon nanotubes for enhanced thermal interface conductance" (2007). Birck and NCN Publications. Paper 64.
https://docs.lib.purdue.edu/nanopub/64