Energetics and Hierarchical Interactions of Metal Phthalocyanines Adsorbed on Graphene/Ir(111) (Articolo in rivista)

Type
Label
  • Energetics and Hierarchical Interactions of Metal Phthalocyanines Adsorbed on Graphene/Ir(111) (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/la401850v (literal)
Alternative label
  • Scardamaglia, M; Struzzi, C; Lizzit, S; Dalmiglio, M; Lacovig, P; Baraldi, A; Mariani, C; Betti, MG (2013)
    Energetics and Hierarchical Interactions of Metal Phthalocyanines Adsorbed on Graphene/Ir(111)
    in Langmuir
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Scardamaglia, M; Struzzi, C; Lizzit, S; Dalmiglio, M; Lacovig, P; Baraldi, A; Mariani, C; Betti, MG (literal)
Pagina inizio
  • 10440 (literal)
Pagina fine
  • 10447 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 29 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 33 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Roma La Sapienza, Dipartimento Fis, CNISM, CNIS, I-00185 Rome, Italy; Elettra Sincrotrone Trieste, I-34149 Trieste, Italy; Univ Trieste, Phys Deparment, I-34127 Trieste, Italy; Univ Trieste, Ctr Excellence Nanostured Mat, I-34127 Trieste, Italy; ] IOM CNR Lab TASC, I-34012 Trieste, Italy; ] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy (literal)
Titolo
  • Energetics and Hierarchical Interactions of Metal Phthalocyanines Adsorbed on Graphene/Ir(111) (literal)
Abstract
  • The adsorption of metal-phthalocyanine (MPc) layers (M = Fe, Co, Cu) assembled on graphene/Ir(111) is studied by means of temperature-programmed X-ray photoemission spectroscopy (XPS) and near-edge X-ray absorption fine structure (NEXAFS). The balance between interaction forces among the organometallic molecules and the underlying graphene gives rise to flat-lying molecular layers, weakly interacting with the underlying graphene. Further MPc layers pile up face-on onto the first layer, up to a few nanometers thickness, as deduced by NEXAFS. The FePc, CoPc, and CuPc multilayers present comparable desorption temperatures, compatible with molecule-molecule interactions dominated by van der Waals forces between the ?-conjugated macrocycles. The MPc single layers desorb from graphene/Ir at higher temperatures. The CuPc single layer desorbs at lower temperature than the FePc and CoPc single layers, suggesting a higher adsorption energy of the FePc and CoPc single layers on graphene/Ir with respect to CuPc, with increasing molecule-substrate interaction in the order ECuPc < EFePc ~ ECoPc. (literal)
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