We have investigated the structural and electronic properties of a pentacene film (â¼2 nm) grown on the Cu(1 1 9) substrate using scanning tunneling microscopy (STM) and synchrotron based angle-resolved UV photoelectron spectroscopy at room temperature. STM images indicate an ordered superstructure of pentacene molecules lying almost flat with respect to the substrate. From angular-resolved photoemission spectra, we have observed an energy-band dispersion of about 100 meV for the highest occupied molecular orbital in the direction perpendicular to the pentacene surface.
Self organization of pentacene grown on Cu(1 1 9) / E. Annese, C.E. Viol, B. Zhou, J. Fujii, I. Vobornik, C. Baldacchini, M.G. Betti, G. Rossi. - In: SURFACE SCIENCE. - ISSN 0039-6028. - 601:18(2007), pp. 4242-4245. ((Intervento presentato al 24. convegno European Conference on Surface Science (ECOSS-24) tenutosi a Paris nel 2006.
Self organization of pentacene grown on Cu(1 1 9)
G. RossiUltimo
2007
Abstract
We have investigated the structural and electronic properties of a pentacene film (â¼2 nm) grown on the Cu(1 1 9) substrate using scanning tunneling microscopy (STM) and synchrotron based angle-resolved UV photoelectron spectroscopy at room temperature. STM images indicate an ordered superstructure of pentacene molecules lying almost flat with respect to the substrate. From angular-resolved photoemission spectra, we have observed an energy-band dispersion of about 100 meV for the highest occupied molecular orbital in the direction perpendicular to the pentacene surface.
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