Co-catalytic absorption layers for controlled laser-induced chemical vapor deposition of carbon nanotubes

F. Benjamin Michaelis, Robert S. Weatherup, Bernhard C. Bayer, Maximilian C.D. Bock, Hisashi Sugime, Sabina Caneva, John Robertson, Jeremy J. Baumberg, Stephan Hofmann

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The concept of co-catalytic layer structures for controlled laser-induced chemical vapor deposition of carbon nanotubes is established, in which a thin Ta support layer chemically aids the initial Fe catalyst reduction. This enables a significant reduction in laser power, preventing detrimental positive optical feedback and allowing improved growth control. Systematic study of experimental parameters combined with simple thermostatic modeling establishes general guidelines for the effective design of such catalyst/absorption layer combinations. Local growth of vertically aligned carbon nanotube forests directly on flexible polyimide substrates is demonstrated, opening up new routes for nanodevice design and fabrication.

Original languageEnglish
Pages (from-to)4025-4032
Number of pages8
JournalACS Applied Materials and Interfaces
Volume6
Issue number6
DOIs
Publication statusPublished - 2014 Mar 26
Externally publishedYes

Keywords

  • LiCVD
  • absorption layer
  • carbon nanotubes
  • chemical vapor deposition
  • co-catalytic
  • laser-induced
  • optical feedback

ASJC Scopus subject areas

  • Materials Science(all)

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  • Cite this

    Michaelis, F. B., Weatherup, R. S., Bayer, B. C., Bock, M. C. D., Sugime, H., Caneva, S., Robertson, J., Baumberg, J. J., & Hofmann, S. (2014). Co-catalytic absorption layers for controlled laser-induced chemical vapor deposition of carbon nanotubes. ACS Applied Materials and Interfaces, 6(6), 4025-4032. https://doi.org/10.1021/am405460r