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Rubidium Doped Metal-Free Phthalocyanine Monolayer Structures on Au(111)
Uppsala Univ.
Uppsala Univ.
Uppsala Univ.
Mälardalen University, Department of Biology and Chemical Engineering.
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2010 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 114, no 28, 12166-12172 p.Article in journal (Refereed) Published
Abstract [en]

Scanning tunneling microscopy (STM) studies of monolayer of metal-free phthalocyanine (H(2)Pc) adsorbed on Au(111) have shown ordered arrangement of the molecules on the surface. Evaporation of H2Pc onto the Au(111) surface and post annealing of the sample to 670 K results in a densely packed structure of the molecules. The monolayer is characterized by molecules adsorbed with the molecular plane parallel to the substrate surface in a square adsorption unit cell. Furthermore, the high resolution images revealed the orientation of individual molecules. The H(2)Pc/Au(111) system has also been doped by rubidum and compared to the undoped layers. The Rb affects the molecular adsorption geometry, and a hexagonal unit cell is found for the coadsorption of H(2)Pc and Rb. Upon doping, highly ordered Rb-induced protrusions are observed at the benzene site of adsorbed molecules.

Place, publisher, year, edition, pages
2010. Vol. 114, no 28, 12166-12172 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:mdh:diva-20152DOI: 10.1021/jp910180yISI: 000279787600017Scopus ID: 2-s2.0-77954692670OAI: oai:DiVA.org:mdh-20152DiVA: diva2:638496
Available from: 2013-07-30 Created: 2013-07-05 Last updated: 2013-07-30Bibliographically approved

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