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Issue 25, 2010
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Self-assembled rows of Ni porphyrin dimers on the Ag(111) surface

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Abstract

The growth and ordering of 5-(10,15,20-triphenylporphyrinatonickel(II))dimer (NiTPP-dimer) molecules on the Ag(111) surface have been investigated using scanning tunnelling microscopy/spectroscopy (STM/STS) and low-energy electron diffraction (LEED). At one monolayer (ML) coverage the NiTPP-dimer forms a well-ordered close-packed molecular layer in which the porphyrin molecules have a flat orientation with the molecular plane lying parallel to the substrate. STM and LEED data obtained from one monolayer of the NiTPP-dimer on the Ag(111) surface show the formation of three domains which grow along the main crystallographic directions of the substrate. Scanning tunnelling spectroscopy data obtained from the NiTPP-dimer on the Ag(111) surface show good agreement with optical band gap measurements and density functional theory calculations.

Graphical abstract: Self-assembled rows of Ni porphyrin dimers on the Ag(111) surface

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Publication details

The article was received on 15 Oct 2009, accepted on 05 Mar 2010 and first published on 13 Apr 2010


Article type: Paper
DOI: 10.1039/B921656A
Citation: Phys. Chem. Chem. Phys., 2010,12, 6666-6671
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    Self-assembled rows of Ni porphyrin dimers on the Ag(111) surface

    S. A. Krasnikov, N. N. Sergeeva, Y. N. Sergeeva, M. O. Senge and A. A. Cafolla, Phys. Chem. Chem. Phys., 2010, 12, 6666
    DOI: 10.1039/B921656A

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