Selective Cooperative Self-Assembly between an Organic Semiconductor and Native Adatoms on Cu(110)

Bret Maughan, Percy Zahl, Peter Sutter, Oliver L A Monti Masel

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We investigate molecular adsorption, film growth, and self-assembly for titanyl phthalocyanine (TiOPc) on Cu(110) in ultrahigh vacuum using low-temperature scanning tunneling microscopy (LT-STM). Three unique molecular adsorption configurations are identified, two of which are referred to as "O-down" and one as "O-up", each differing in the molecular registry with the surface. Even though disorder dominates film growth to coverages in excess of 1 monolayer in the native thin film, extended self-assembled 1D configuration-dependent nanoribbons form upon annealing of the film. The STM data reveal that the nanoribbons consist of "O-down" TiOPc and a Cu skeleton, anchoring cooperatively on the Cu(110) terraces. Agent-based simulations show that nanoribbons grow and elongate due to anisotropic adatom attachment rates along the two major surface directions. The study reveals the importance of molecule-adatom interactions for novel approaches toward nanostructuring organic semiconductor/metal interfaces.

Original languageEnglish (US)
Pages (from-to)27416-27425
Number of pages10
JournalJournal of Physical Chemistry C
Volume119
Issue number49
DOIs
StatePublished - Dec 10 2015

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Nanoribbons
Carbon Nanotubes
Semiconducting organic compounds
Adatoms
organic semiconductors
Self assembly
adatoms
self assembly
Film growth
Adsorption
adsorption
Beam plasma interactions
Ultrahigh vacuum
Scanning tunneling microscopy
configurations
musculoskeletal system
ultrahigh vacuum
attachment
scanning tunneling microscopy
Monolayers

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Selective Cooperative Self-Assembly between an Organic Semiconductor and Native Adatoms on Cu(110). / Maughan, Bret; Zahl, Percy; Sutter, Peter; Monti Masel, Oliver L A.

In: Journal of Physical Chemistry C, Vol. 119, No. 49, 10.12.2015, p. 27416-27425.

Research output: Contribution to journalArticle

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