Molecular growth determined by surface domain patterns
2008 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 112, no 17, 6887-6890 p.Article in journal (Refereed) Published
The growth of iron phthalocyanine (FePc) on InSb(001) c(8 x 2) at submonolayer coverage has been investigated with scanning tunneling microscopy (STM). FePc adsorbs flat centered on the In rows both at 70 K and at room temperature (RT). However, the shapes of the two-dimensional molecular islands are fundamentally different; while the RT growth results in chainlike structures along the [I 10] direction, as already observed for other Pc's adsorbed on the same surface, the islands are prolonged along , i.e., perpendicular to the substrate rows, at 70 K. These observations are explained on the basis of a recently observed new surface phase at low temperature, resulting in structural domains on the surface. The molecular growth front follows the propagating domain boundary that freezes at low temperature.
Place, publisher, year, edition, pages
2008. Vol. 112, no 17, 6887-6890 p.
scanning-tunneling-microscopy, pem fuel-cells, metal phthalocyanines, oxygen reduction, active-sites, thin-films, catalysts, insb(100), oxidation, fe
IdentifiersURN: urn:nbn:se:kth:diva-17475DOI: 10.1021/jp711680qISI: 000255292400041ScopusID: 2-s2.0-44349186884OAI: oai:DiVA.org:kth-17475DiVA: diva2:335519
QC 201005252010-08-052010-08-052011-02-22Bibliographically approved