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Microscale study of electrical characteristics of epoxy-multiwall carbon nanotube nanocomposites

Njuguna, Michael K., Yan, Cheng, Bell, John M., & Yarlagadda, Prasad K. (2011) Microscale study of electrical characteristics of epoxy-multiwall carbon nanotube nanocomposites. In Wang, Zhidong (Ed.) Proceedings of the 2011 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE , Kaohsiumg, Taiwan, pp. 511-514.

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Abstract

Epoxy-multiwall carbon nanotube nanocomposite thin films were prepared by spin casting. High power air plasma was used to preferentially etch a coating of epoxy and expose the underlying carbon nanotube network. Scanning electron microscopy (SEM) examination revealed well distributed and spatially connected carbon nanotube network in both the longitudinal direction (plasma etched surface) and traverse direction (through-thickness fractured surface). Topographical examination and conductive mode imaging of the plasma etched surface using atomic force microscope (AFM) in the contact mode enabled direct imaging of topography and current maps of the embedded carbon nanotube network. Bundles consisting of at least three single carbon nanotubes form part of the percolating network observed under high resolution current maps. Predominantly non-ohmic response is obtained in this study; behaviour attributed to less than effective polymer material removal when using air plasma etching.

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ID Code: 45979
Item Type: Conference Paper
Keywords: Atomic Force Microscope (AFM), Scanning Electron Microscopy (SEM), Surface Treatment, Surface Topography, Polymers, Plasmas, Conductivity, Carbon Nanotubes
DOI: 10.1109/NEMS.2011.6017405
ISBN: 9781612847771
Subjects: Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanomaterials (100708)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanoscale Characterisation (100712)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2011 IEEE
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 30 Sep 2011 09:07
Last Modified: 14 Oct 2011 18:35

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