ISSN 2630-0583 (Print)

ISSN 2630-0656 (Online)

JCST

Journal of Current Science and Technology

http://jcst.rsu.ac.th

Rangsit Journal of Arts and Sciences. Vol.2 No.2 , July - December 2012.

Growing carbon nanotubes vertically and horizontally to the substrate: a review.

Marguerite Ellis, Binh Duong, and Supapan Seraphin

Abstract

            This review article provides information on processing conditions of chemical vapor depositions that are significant to the growth of carbon nanotubes (CNTs) either vertically or horizontally along the substrate.  Carbon nanotubes are generated in forms of single-walled, double-walled, multi-walled cylindrical tubes, and stacked-cone fibers.  Novel composites of vertically aligned CNTs and graphitic layer are also presented.  Key processing parameters include type of catalyst systems, underlayer, gaseous hydrocarbon sources, and gas flow rate.  Growth mechanisms of various CNT forms are discussed.  The review includes Raman spectroscopy analysis to determine electrical and structural properties of CNTs.

Keywords: carbon nanotubes, carbon nanofibers, double-walled carbon nanotubes, chemical vapor deposition of carbon nanotubes, Raman spectroscopy of carbon nanotubes.

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DOI: 10.14456/rjas.2012.26