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


Type

Article

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Authors

Michaelis, F Benjamin 
Weatherup, Robert S 
Bayer, Bernhard C 
Bock, Maximilian CD 
Sugime, Hisashi 

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.

Description

Keywords

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

Journal Title

ACS Appl Mater Interfaces

Conference Name

Journal ISSN

1944-8244
1944-8252

Volume Title

Publisher

American Chemical Society (ACS)
Sponsorship
Engineering and Physical Sciences Research Council (EP/L027151/1)
European Research Council (320503)
Engineering and Physical Sciences Research Council (EP/G060649/1)
European Research Council (279342)