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Molecular growth determined by surface domain patterns

Författare:
  • John Ahlund
  • Katharina Nilson
  • Pal Palmgren
  • Emmanuelle Gothelid
  • Joachim Schiessling
  • Mats Gothelid
  • Nils Mårtensson
  • Carla Puglia
Publiceringsår: 2008
Språk: Engelska
Sidor: 6887-6890
Publikation/Tidskrift/Serie: Journal of Physical Chemistry C
Volym: 112
Nummer: 17
Dokumenttyp: Artikel
Förlag: American Chemical Society

Sammanfattning

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 110, 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.

Disputation

Nyckelord

  • Physics and Astronomy
  • Chemistry

Övrigt

Published
Yes
  • ISSN: 1932-7447

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