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Recent scientific advances permit the ordered growth of a single layer
of polymer on a surface. This type of growth could potentially have significant
applicability to technological or industrial processes, and understanding
the conditions under which we may efficiently produce such types of structures
is the first step. Our research focuses on the catalytic growth of polymer
structures in 1 and 2D, with specific attention to controlling the inhibition
and acceleration of the polymerization-reaction. Our most recent advances
have demonstrated polymer growth at the surface of single-crystal noble
metals. My current focus is to extend this project towards more technologically
useful domains - that is, to replicate the 1D and 2D growth motifs onto
insulating substrates such as metal oxides, in order to create supported
layers of conductive polymer.
Published articles
J.A. Lipton-Duffin, J.A. Miwa, M. Kondratenko, F. Cicoira,
B.G. Sumpter, V. Meunier, D.F. Perepichka, and F. Rosei,
Step-by-step growth of epitaxially aligned polythiophene by surface-confined
reaction. PNAS, 107:112000-11204 (2010).
MacLeod, J. M., Lipton-Duffin, J. A., Fu, C. and Rosei,
F. STM-induced nonlocal reactions at interfaces. ACS Nano, 3:3347-3351
(2009).
MacLeod, J. M., Lipton-Duffin, J. A., Lanke, U., Urquhart,
S. G., and Rosei, F. Shape transition in very large germanium islands
on Si(111), Applied Physics Letters, 94:103109 (2009).
Lipton-Duffin, J. A., Ivasenko, O., Perepichka, D. F.
and Rosei, F. Synthesis of polyphenylene molecular wires by surface-confined
polymerization, Small, 5:592-597 (2009).
Miwa, J.A., Cicoira, F., Lipton-Duffin, J. A., Perepichka,
D. F., Santato, C., and Rosei, F. Self-assembly of rubrene on Cu(111),
Nanotechnology, 19:424021 (2008)
Miwa, J.A., Cicoira, F., Bedwani, S., Lipton-Duffin, J. A.,
Perepichka, D. F., Rochefort, A., and Rosei, F. Self-assembly of rubrene
on copper surfaces, Journal of Physical Chemistry C, 112:10214-10221 (2008)
Lipton-Duffin, J. A., Mark, A. G., MacLeod, J. M., and
McLean, A. B. Si(557)-Ag: A Metallic Quasi-1D System, Physical Review
B, 77:125419 (2008) .
McLean, A. B., Hill, I. G., Lipton-Duffin, J. A., MacLeod, J. M., Miwa,
R. H., and Srivastava, G. P., Nanolines on silicon surfaces. International
Journal of Nanotechnology, 5:1018-1057 (2008).
Lipton-Duffin, J. A., MacLeod, J. M., and McLean, A.
B., Detection of a Fermi-level crossing in Si(557)-Au with inverse photoemission.
Physical Review B. 73:245418 (2006).
Mark, A.G., Lipton-Duffin, J. A., MacLeod, J. M., Miwa,
R. H., and Srivastava, G. P., and McLean, A.B., The electronic structure
of Si(001)-Bi(2×n). Journal of Physics: Condensed Matter. 17:571-589
(2005).
Lipton-Duffin, J. A., Mark, A.G., Mullins, G.K., Contant,
G.E., and McLean, A.B., An inverse photoemission system with large solid
angle of detection and adjustable optical bandpass. Review of Scientific
Instruments. 75:445-454 (2004).
Lipton-Duffin, J. A., Mark, A.G., and McLean, A.B., Photon
detection with n-propanol and C2H6O isomers. Review of Scientific Instruments.
73:3149-3153 (2002).
Articles in preparation
Miwa, J. A., Casalis, L., Cossaro, A., Ratto, F., Lipton-Duffin,
J. A., Cicoira, F., Delvigne, E., Barth, J. V., Floreano, L.,
Morgante, A., Rosei, F. Binding geometry of self-assembled PVBA chains
on Ag(111), In preparation (2010).
Conference presentations
Lipton-Duffin, J. A., Ivasenko, O., Meunier, V., Perepichka,
D. F, and Rosei, F. Synthesis of epitaxially-confined polymers by surface-catalysis.
Platform presentation, 26th Annual European Conference on Surface Science
(ECOSS 26), September 1-4 2009, Parma, Italy.
MacLeod J., Lipton-Duffin, J. A., Lanke, U., Urquhart,
S. G., and Rosei, F. Very large germanium islands on Si(111). Platform
presentation, 26th Annual European Conference on Surface Science (ECOSS
26), September 1-4 2009, Parma, Italy.
Lipton-Duffin, J. A., Gallagher, M. C., Brusso, J. L.,
Perepichka, D. F., Rosei, F. Towards 2-d conjugated organic polymers;
Br-TTA molecules on Cu(111). APS March meeting, March 16-19 2009, Pittsburgh,
PA, USA.
Lipton-Duffin, J. A., Mark, A.G., MacLeod, J. M., and
McLean, A. B. (2007) Si(557)-Ag, a new metallic 1D system. Platform presentation,
17th International Vacuum Congress/13th International Conference on Surface
Science (ICSS-13)/International Conference on Nano Science and Technology
(ICN+T 2007), July 2-6 2007, Stockholm, Sweden.
Lipton-Duffin, J. A., MacLeod, J. M., Mark, A.G., and
McLean, A. B. (2006) Unoccupied electronic states of nanolines on Si(557).
Poster presentation, 66th Annual Physical Electronics Conference, June
18-21 2006, Princeton, NJ.
Lipton-Duffin, J. A., MacLeod, J. M., Mark, A.G., and
McLean, A.B. (2006) Empty-state bandstructure of nanolines grown on silicon.
Platform presentation, Surface Canada, May 14-17 2006, Kingston, Ontario.
(Winner of Peter Hobson Prize for best student presentation)
Lipton-Duffin, J. A., MacLeod, J. M., Mark, A.G., and
McLean, A.B., (2006) Electronic structure of nanowires on silicon. Poster
presentation, Materials and Nanotechnology Symposium, April 25-26 2006,
Kingston, Ontario. (Winner of Best Student Poster Award)
Lipton-Duffin, J. A., MacLeod, J. M., and McLean, A.
B. (2005) Empty-state characteristics of Si(557)-Au chains. Platform presentation,
65th Annual Physical Electronics Conference, June 2005.
MacLeod, J. M., Lipton-Duffin, J. A., Mark, A. G., and
McLean, A. B., (2003), A structural and electronic study of self-organised
Bi antiwires. Poster presentation, Canadian Association of Physicists
Congress, Charlottetown, PEI, June 8-11 2003.
MacLeod, J. M., Mark, A. G., Lipton-Duffin, J. A., and
McLean, A. B., (2003), Poster presentation, Antiwires and mono-dispersed
In6 nanodot arrays: contrasting nano-architectures. Workshop on Nanoscale
Materials and Processes, Ottawa, Ontario, August 18 2003.
Lipton-Duffin, J. A., Mark, A. G., and McLean, A. B.
(2002), Poster presentation, K3-high resolution inverse photoelectron
spectroscopy. Surface Canada, Ottawa, Ontario, May 12-15 2002.
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