Iron-phthalocyanine and cobalt-phthalocyanine chains, assembled along the Au(110)-(1×2) reconstructed channels, present a strong interaction with the Au metallic states, via the central metal ion. X-ray photoemission spectroscopy from the metal-2p core-levels and valence band high-resolution ultraviolet photoelectron spectroscopy bring to light signatures of the interaction of the metal-phthalocyanine single-layer with gold. The charge transfer from Au to the molecule causes the emerging of a metal-2p core level component at lower binding energy with respect to that measured in the molecular thin films, while the core-levels associated to the organic macrocycle (C and N 1s) are less influenced by the adsorption, and the macrocycles stabilize the interaction, inducing a strong interface dipole. Temperature Programmed Desorption experiments and photoemission as a function of temperature allow to estimate the adsorption energy for the thin-films, mainly due to the molecule-molecule van der Waals interaction, while the FePc and CoPc single-layers remain adsorbed on the Au surface up to at least 820 K. © 2014 AIP Publishing LLC.

Metal-phthalocyanine ordered layers on Au(110): Metal-dependent adsorption energy / Massimi, Lorenzo; Angelucci, Marco; Gargiani, Pierluigi; Betti, Maria Grazia; Silvia, Montoro; Mariani, Carlo. - In: THE JOURNAL OF CHEMICAL PHYSICS. - ISSN 0021-9606. - 140:24(2014), pp. 244704-244712. [10.1063/1.4883735]

Metal-phthalocyanine ordered layers on Au(110): Metal-dependent adsorption energy

MASSIMI, LORENZO;ANGELUCCI, MARCO;GARGIANI, PIERLUIGI;BETTI, Maria Grazia;MARIANI, CARLO
2014

Abstract

Iron-phthalocyanine and cobalt-phthalocyanine chains, assembled along the Au(110)-(1×2) reconstructed channels, present a strong interaction with the Au metallic states, via the central metal ion. X-ray photoemission spectroscopy from the metal-2p core-levels and valence band high-resolution ultraviolet photoelectron spectroscopy bring to light signatures of the interaction of the metal-phthalocyanine single-layer with gold. The charge transfer from Au to the molecule causes the emerging of a metal-2p core level component at lower binding energy with respect to that measured in the molecular thin films, while the core-levels associated to the organic macrocycle (C and N 1s) are less influenced by the adsorption, and the macrocycles stabilize the interaction, inducing a strong interface dipole. Temperature Programmed Desorption experiments and photoemission as a function of temperature allow to estimate the adsorption energy for the thin-films, mainly due to the molecule-molecule van der Waals interaction, while the FePc and CoPc single-layers remain adsorbed on the Au surface up to at least 820 K. © 2014 AIP Publishing LLC.
2014
ordered nanostructures; molecule surface interaction; photemission spectroscopy
01 Pubblicazione su rivista::01a Articolo in rivista
Metal-phthalocyanine ordered layers on Au(110): Metal-dependent adsorption energy / Massimi, Lorenzo; Angelucci, Marco; Gargiani, Pierluigi; Betti, Maria Grazia; Silvia, Montoro; Mariani, Carlo. - In: THE JOURNAL OF CHEMICAL PHYSICS. - ISSN 0021-9606. - 140:24(2014), pp. 244704-244712. [10.1063/1.4883735]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/648425
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