We present the growth morphology, the long-range ordering, and the evolution of the valence band electronic states of ultrathin films of copper phthalocyanine (CuPc) deposited on the Au(110)-(1 x 2) reconstructed surface, as a function of the organic molecule coverage. The low energy electron diffraction patterns present a (5 x 3) reconstruction from the early adsorption stages. High-resolution UV photoelectron spectroscopy data show the disappearance of the Au surface states related to the (1 x 2) reconstruction, and the presence of new electronic features related to the molecule-substrate interaction and to the CuPc molecular states. The CuPc highest occupied molecular orbital gradually emerges in the valence band, while the interface electronic states are quenched, upon increasing the coverage. (C) 2003 Published by Elsevier Science B.V.

CuPc molecules adsorbed on Au(110)-(1 x 2): Growth morphology and evolution of valence band states / Fabrizio, Evangelista; Ruocco, A.; Valdis, Corradini; Donzello, Maria Pia; Mariani, Carlo; Betti, Maria Grazia. - In: SURFACE SCIENCE. - ISSN 0039-6028. - STAMPA. - 531:2(2003), pp. 123-130. [10.1016/s0039-6028(03)00507-7]

CuPc molecules adsorbed on Au(110)-(1 x 2): Growth morphology and evolution of valence band states

DONZELLO, Maria Pia;Carlo Mariani;BETTI, Maria Grazia
2003

Abstract

We present the growth morphology, the long-range ordering, and the evolution of the valence band electronic states of ultrathin films of copper phthalocyanine (CuPc) deposited on the Au(110)-(1 x 2) reconstructed surface, as a function of the organic molecule coverage. The low energy electron diffraction patterns present a (5 x 3) reconstruction from the early adsorption stages. High-resolution UV photoelectron spectroscopy data show the disappearance of the Au surface states related to the (1 x 2) reconstruction, and the presence of new electronic features related to the molecule-substrate interaction and to the CuPc molecular states. The CuPc highest occupied molecular orbital gradually emerges in the valence band, while the interface electronic states are quenched, upon increasing the coverage. (C) 2003 Published by Elsevier Science B.V.
2003
growth; interface states; low energy electron diffraction (leed); surface relaxation and reconstruction; visible and ultraviolet photoelectron spectroscopy
01 Pubblicazione su rivista::01a Articolo in rivista
CuPc molecules adsorbed on Au(110)-(1 x 2): Growth morphology and evolution of valence band states / Fabrizio, Evangelista; Ruocco, A.; Valdis, Corradini; Donzello, Maria Pia; Mariani, Carlo; Betti, Maria Grazia. - In: SURFACE SCIENCE. - ISSN 0039-6028. - STAMPA. - 531:2(2003), pp. 123-130. [10.1016/s0039-6028(03)00507-7]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/251124
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