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PTCDA molecules on an InSb(001) surface studied with atomic force microscopy

Kolodziej, J. J. and Goryl, M. and Konior, J. and Krok, F. and Szymonski, M. (2007) PTCDA molecules on an InSb(001) surface studied with atomic force microscopy. NANOTECHNOLOGY, 18 (13).

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Official URL: http://www.iop.org/EJ/abstract/0957-4484/18/13/135...

Abstract

PTCDA (3,4,9,10-perylene-tetracarboxylic-dianhydride) molecular structures assembled on an InSb( 001) c( 8 x 2) reconstructed surface have been studied using frequency modulated atomic force microscopy. The high-resolution imaging of the structures is possible through repulsive interactions, using the constant height scanning mode. During initial stages of growth the [ 110] diffusion channel dominates as indicated by formation of long PTCDA molecular chains parallel to the [ 110] crystallographic direction on the InSb surface. For a single monolayer coverage a wetting layer of PTCDA is formed. Finally it is shown that the PTCDA/InSb is a promising system for building molecular nanostructures by manipulation of single molecules with the AFM tip.

Item Type:Article
Uncontrolled Keywords:QUASIEPITAXIAL GROWTH; GAAS(001); FILMS; PHTHALOCYANINE; SPECTROSCOPY
Subjects:Analytical Science > Microscopy and probe methods
Material Science > Functional and hybrid materials
ID Code:6375
Deposited By:IoN
Deposited On:28 Sep 2009 10:33
Last Modified:28 Sep 2009 10:33

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