1. Geometric and electronic properties of porphyrin molecules on Au(111) and NaCl surfaces
- Author
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Youngchul Song, Seong Heon Kim, Seong Joon Lim, Hae-Seong Jeong, Young Kuk, Jaejun Yu, and U.D. Ham
- Subjects
Sodium ,Scanning tunneling spectroscopy ,Analytical chemistry ,chemistry.chemical_element ,Surfaces and Interfaces ,Condensed Matter Physics ,Porphyrin ,Surfaces, Coatings and Films ,law.invention ,chemistry.chemical_compound ,chemistry ,law ,Materials Chemistry ,Molecule ,Physical chemistry ,Density functional theory ,Scanning tunneling microscope ,Platinum ,HOMO/LUMO - Abstract
Geometric and electronic properties of platinum octaethyl porphyrin (PtOEP) molecules on thin insulating sodium chloride (NaCl) and bare Au(111) surfaces are studied using scanning tunneling microscopy and scanning tunneling spectroscopy (STS). In the STS study, a slight downward shift of a highest occupied molecular orbital peak is observed for a PtOEP molecule on NaCl(100)/Au(111). Density functional theory calculations for PtOEP molecules on the NaCl(100)/Au(111) and the bare Au(111) confirm the experimental findings.
- Published
- 2013