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Controlled two-dimensional pattern of spontaneously aligned carbon nanotubes

Nano Letters, ISSN: 1530-6984, Vol: 6, Issue: 1, Page: 55-60
2006
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Article Description

We report a simple solution process to form controlled patterns of aligned single-walled carbon nanotubes on solid substrates. The essential step of the process is to deposit a dilute solution of DNA-wrapped carbon nanotubes (DNA-CNTs) on a SiO surface covered with a thin hydrophobic layer. This leads to deposition of fully aligned CNTs. The alignment pattern can be controlled by metal electrodes in the deposition region and can be quantitatively modeled by the behavior of a quasi-two-dimensional DNA-CNT nematic phase near the solution/SiO interface. These results point to the possibility of rational design and economical fabrication of CNT alignment patterns on solid substrates. © 2006 American Chemical Society.

Bibliographic Details

McLean, Robert S; Huang, Xueying; Khripin, Constantine; Jagota, Anand; Zheng, Ming

American Chemical Society (ACS)

Chemical Engineering; Chemistry; Materials Science; Physics and Astronomy; Engineering

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