4. Conclusions
In summary, we have shown that selective placement of
[2.2]paracyclophane modified nanotubes on indium-tin-oxide/
glass substrates can be achieved using a voltage assisted
dewetting approach. It was observed that when a metallic grid,
used as mask, is positioned on an electrically biased FTO
surface, the PCP 1 moiety positioned in between fills the grid
bars while PCP 1 modified SWNTs are patterned as the holes
suggesting that the PCP greatly affects the dielectric function
of the nanotubes.
Acknowledgements
Aldo Taticchi and Assunta Marrocchi thank M.I.U.R.
(Ministero dell’Universita` e della Ricerca), Rome, Italy, for
funding. Luca Valentini and Jose` Maria Kenny acknowledge
the Italian National Consortium on Materials Science and
Technology (INSTM) for funding.
Fig. 5 (a) Phase image in tapping mode AFM (70 mm 6 70 mm) of
the PCP 1/C-SWNTs patterned onto a FTO/glass substrate with a bias
of +2 V. (b) AFM image in tapping mode (20 mm 6 20 mm) of the PCP
1/C-SWNTs patterned onto a FTO/glass substrate with a bias of +2 V.
(c) SEM image of FTO surface patterned using PCP 1/C-SWNTs
solution with a bias of +2 V. (d) Higher resolution SEM image of (c).
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its sidewalls. A more detailed investigation of the causes of this
is currently under way.
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J. Mater. Chem., 2008, 18, 484–488 | 487