N. Oncel, S. Bernasek
Apr 1, 2008
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Influential Citations
15
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Journal
Applied Physics Letters
Abstract
The adsorption of Pt-octaethyl porphyrin (Pt-OEP) molecules on highly ordered pyrolytic graphite (HOPG) and on 5-(octadecyloxy) isophthalic acid covered HOPG was studied with scanning tunneling microscopy at the solid-liquid interface. Pt-octaethyl porphyrin molecules lie flat on both surfaces and form a hexagonal lattice with an internal angle of about 60° and a lattice spacing of approximately 1.2nm. The similar overlayer structure observed on the dramatically different substrates suggests that molecular packing in the Pt-OEP layer controls the structure.