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Effect of catalyst pattern geometry on the growth of vertically aligned carbon nanotube arrays

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http://www.sciencedirect.com/science/article/pii/S0008622308005952
Original languageEnglish
Pages (from-to)696-704
Number of pages9
JournalCarbon
Volume47
Issue number3
DOIs
Publication statusPublished - Mar 2009

Abstract

We report the effect of catalyst pattern geometry on the growth behaviour of carbon nanotube (CNT) vertical arrays. Larger patterns are seen to produce longer CNT arrays. We show that this is predominantly related to the pattern size dependence of the number of walls and relate this to the local availability of carbon feedstock species. In addition, the vertical alignment of CNT pillar arrays is seen to depend on the pattern design, in particular the relationship between the pillar dimension and the inter-pillar spacing. (C) 2008 Elsevier Ltd. All rights reserved.

    Research areas

  • CNT CHEMICAL-VAPOR-DEPOSITION, NUCLEATION, CVD, VACNT arrays

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