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Rubidium Doped Metal-Free Phthalocyanine Monolayer Structures on Au(111)

Författare

  • Katharina Nilson
  • John Ahlund
  • Masumeh-Nina Shariati
  • Emmanuelle Gothelid
  • Pal Palmgren
  • Joachim Schiessling
  • Simon Berner
  • Nils Mårtensson
  • Carla Puglia

Summary, in English

Scanning tunneling microscopy (STM) studies of monolayer of metal-free phthalocyanine (H2Pc) 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 H2Pc/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 H2Pc and Rb. Upon doping, highly ordered Rb-induced protrusions are observed at the benzene site of adsorbed molecules.

Publiceringsår

2010

Språk

Engelska

Sidor

12166-12172

Publikation/Tidskrift/Serie

Journal of Physical Chemistry C

Volym

114

Issue

28

Dokumenttyp

Artikel i tidskrift

Förlag

The American Chemical Society (ACS)

Ämne

  • Physical Sciences
  • Natural Sciences

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1932-7447