Coverage-dependent study of nickel tetraphenyl-porphyrin on Au(332) and Au(788)

Shadi Fatayer, Mauricio Javier Prieto, Richard Landers, Abner de Siervo

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


The coverage-dependent self-assembly of Nickel-tetraphenyl porphyins on Gold vicinal surfaces was studied by scanning tunneling microscopy. On Au(788) the molecular self-assembly is square-shaped, following the molecular symmetry. On Au(332) the molecules nucleate in a parallelogram lattice for monolayer coverage and in a squared lattice for multilayer coverage. Depending on the vicinal surface the molecules adopt either a saddle shaped or a more planar conformation. The experiments demonstrate that crystallographic direction, terrace sizes and coverage are important in establishing different assembly geometries.
Original languageEnglish (US)
Pages (from-to)122105
JournalSurface Science
StatePublished - May 3 2022

Bibliographical note

KAUST Repository Item: Exported on 2022-05-16
Acknowledgements: Supported by FAPESP (grant numbers 2007/54829-5, 2007/08244-5), CNPq (grant numbers 482390/2012-3 and 308717/2012-0), and CAPES from Brazil. S.F. gratefully acknowledges FAPESP studentship 2012/16860-8. MJP is thankful for the funding provided by the FAPESP grant 2011/12566-3.

ASJC Scopus subject areas

  • Materials Chemistry
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Condensed Matter Physics


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