Open this publication in new window or tab >>2019 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 150, no 4Article in journal (Refereed) Published
Abstract [en]
Perylene tetracarboxylic diimide molecules were evaporated onto a Sn/Si(111)-2 root 3 x 2 root 3 surface and studied using scanning tunneling microscopy (STM) and low energy electron diffraction. At low coverages, single molecules are locked into specific adsorption geometries, which are investigated in detail using high resolution STM. The electronic structure of these individual molecules was studied using bias dependent STM images. The molecules form 1D rows that become more common with increasing coverages. Possible intermolecular O center dot center dot center dot H interactions within the rows have been identified. At around half of a monolayer (ML), the rows of molecules interact with each other and form a commensurate 4 root 3 x 2 root 3 reconstruction. In a complete monolayer, several structures emerge as molecules fill in the space between the 4 root 3 x 2 root 3 stripes. Possible intermolecular interactions within the 1 ML structures have been discussed. At coverages above 1 ML, the growth is characterized by island growth, where the molecules are arranged according to the canted structure within the layers.
Place, publisher, year, edition, pages
New York: American Institute of Physics (AIP), 2019
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
urn:nbn:se:kau:diva-70247 (URN)10.1063/1.5070120 (DOI)000457414600075 ()
Funder
Swedish Research Council, 2013-5291
Note
Artikeln tidigare publicerad som manuskript i Emanuelssons (2018) doktorsavhandling Electronic Structure and Film Morphology Studies of PTCDI on Metal/Semiconductor Surfaces
2018-11-222018-11-222020-10-05Bibliographically approved