AI Article Synopsis
- The study introduces co-catalytic layer structures to enhance the controlled growth of carbon nanotubes through laser-induced chemical vapor deposition, utilizing a thin Ta support layer to aid in catalyst reduction.
- This method allows for lower laser power usage, reducing negative optical feedback and contributing to better growth control.
- The findings enable the creation of vertically aligned carbon nanotube forests on flexible polyimide substrates, paving the way for innovative designs and fabrication techniques in nanodevices.
Article 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.
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| http://dx.doi.org/10.1021/am405460r | DOI Listing |
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