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Understanding domain symmetry in vanadium oxide phthalocyanine monolayers on Au (111)
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Rochford, Luke A., Hancox, Ian and Jones, T. S. (Tim S.) (2014) Understanding domain symmetry in vanadium oxide phthalocyanine monolayers on Au (111). Surface Science, Volume 628 . pp. 62-65. doi:10.1016/j.susc.2014.05.010
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Official URL: http://dx.doi.org/10.1016/j.susc.2014.05.010
Abstract
Understanding the growth of organic semiconductors on solid surfaces is of key importance for the field of organic electronics. Non planar phthalocyanines have shown great promise in organic photovoltaic (OPV) applications, but little of the fundamental surface characterization to understand their structure and properties has been performed. Acquiring a deeper understanding of the molecule/substrate interaction in small molecule systems is a vital step in controlling structure/property relationships. Here we characterize the vanadium oxide phthalocyanine (VOPc)/Au (111) surface using a combination of low energy electron diffraction (LEED) and scanning tunneling microscopy (STM), obtaining complex diffraction patterns which can be understood using two dimensional fast Fourier transform (2D-FFT) analysis of STM images. These measurements reveal coexistence of three symmetrically equivalent in-plane orientations with respect to the substrate, each of which is imaged simultaneously within a single area. Combining scanning probe and diffraction measurements allows symmetrically related domains to be visualized and structurally analyzed, providing fundamental information useful for the structural engineering of non-planar phthalocyanine interfaces.
Item Type: | Journal Article | ||||||||||
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Subjects: | Q Science > QD Chemistry | ||||||||||
Divisions: | Faculty of Science > Chemistry | ||||||||||
Library of Congress Subject Headings (LCSH): | Scanning tunneling microscopy, Low energy electron diffraction, Phthalocyanines, Vanadium oxide, Gold | ||||||||||
Journal or Publication Title: | Surface Science | ||||||||||
Publisher: | Elsevier BV | ||||||||||
ISSN: | 0039-6028 | ||||||||||
Official Date: | October 2014 | ||||||||||
Dates: |
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Volume: | Volume 628 | ||||||||||
Number of Pages: | 4 | ||||||||||
Page Range: | pp. 62-65 | ||||||||||
DOI: | 10.1016/j.susc.2014.05.010 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Open Access | ||||||||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||||||||
Grant number: | EP/F041160/1 (EPSRC) |
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