Going beyond pentacene: photoemission tomography of a heptacene monolayer on Ag(110)

Sättele, Marie S.; Windischbacher, Andreas; Egger, Larissa; Haags, Anja; Hurdax, Philipp; Kirschner, Hans; Gottwald, Alexander; Richter, Mathias; Bocquet, François C.; Soubatch, Serguei; Tautz, F. Stefan; Bettinger, Holger F.; Peisert, Heiko; Chassé, Thomas; Ramsey, Michael G.; Puschnig, Peter; Koller, Georg

doi:https://doi.org/10.1021/acs.jpcc.0c09062

Zugriffsnummer	45392
Dokumenttyp	Zeitschriftenartikel
Peer Review	mit Peer Review
Sprache	Englisch
Titel	Going beyond pentacene: photoemission tomography of a heptacene monolayer on Ag(110)
Autor(in); Institution	Sättele, Marie S.; Institute of Physical and Theoretical Chemistry, University of Tübingen, Tübingen, GERMANY Windischbacher, Andreas; Institute of Physics, University of Graz, Graz, AUSTRIA Egger, Larissa; Institute of Physics, University of Graz, Graz, AUSTRIA Haags, Anja; Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, Jülich, GERMANY Hurdax, Philipp; Institute of Physics, University of Graz, Graz, AUSTRIA Kirschner, Hans; 7.1, Radiometrie mit Synchrotronstrahlung, PTB-Berlin Gottwald, Alexander; 7.1, Radiometrie mit Synchrotronstrahlung, PTB-Berlin Richter, Mathias; 7, Temperatur und Synchrotronstrahlung, PTB-Berlin Bocquet, François C.; Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, Jülich, GERMANY Soubatch, Serguei; Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, Jülich, GERMANY Tautz, F. Stefan; Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, Jülich, GERMANY Bettinger, Holger F.; Institute of Physical and Theoretical Chemistry, University of Tübingen, Tübingen, GERMANY Peisert, Heiko; Institute of Physical and Theoretical Chemistry, University of Tübingen, Tübingen, GERMANY Chassé, Thomas; Institute of Physical and Theoretical Chemistry, University of Tübingen, Tübingen, GERMANY Ramsey, Michael G.; Institute of Physics, University of Graz, Graz, AUSTRIA Puschnig, Peter; Institute of Physics, University of Graz, Graz, AUSTRIA Koller, Georg; Institute of Physics, University of Graz, Graz, AUSTRIA
Quelle/Jahr	The Journal of Physical Chemistry C: 125 (2021), 5, 2918 - 2925
Artikelnummer	10.1021
ISSN	1932-7447 (PRINT) ; 1932-7455 (ONLINE)
DOI	https://doi.org/10.1021/acs.jpcc.0c09062
Verlag	Washington: ACS Publications
Zusammenfassung	Longer acenes such as heptacene are promising candidates for optoelectronic applications but are unstable in their bulk structure as they tend to dimerize. This makes the growth of well-defined monolayers and films problematic. In this article, we report the successful preparation of a highly oriented monolayer of heptacene on Ag(110) by thermal cycloreversion of diheptacenes. In a combined effort of angle-resolved photoemission spectroscopy and density functional theory (DFT) calculations, we characterize the electronic and structural properties of the molecule on the surface in detail. Our investigations allow us to unambiguously confirm the successful fabrication of a highly oriented complete monolayer of heptacene and to describe its electronic structure. By comparing experimental momentum maps of photoemission from frontier orbitals of heptacene and pentacene, we shed light on differences between these two acenes regarding their molecular orientation and energy-level alignment on the metal surfaces.

Kostenfreier Zugang	Open Access Hybrid
Rechteinformation	CC BY 4.0 ; Creative Commons Attribution 4.0 License

Themenbereich der Metrologie

Photometrie und Radiometrie

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Sättele, M. S., Windischbacher, A., Egger, L., Haags, A., Hurdax, P., Kirschner, H., Gottwald, A., Richter, M., Bocquet, F. C., Soubatch, S., Tautz, F. S., Bettinger, H. F., Peisert, H., Chassé, T., Ramsey, M. G., Puschnig, P., & Koller, G. (2021). Going beyond pentacene: photoemission tomography of a heptacene monolayer on Ag(110). The Journal of Physical Chemistry C, 125(5), 2918–2925. https://doi.org/10.1021/acs.jpcc.0c09062

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