dc.contributor.author
Stein, Arnulf
dc.contributor.author
Rolf, Daniela
dc.contributor.author
Lotze, Christian
dc.contributor.author
Feldmann, Sascha
dc.contributor.author
Gerbert, David
dc.contributor.author
Günther, Benjamin
dc.contributor.author
Jeindl, Andreas
dc.contributor.author
Cartus, Johannes J.
dc.contributor.author
Hofmann, Oliver T.
dc.contributor.author
Franke, Katharina J.
dc.date.accessioned
2021-11-15T14:03:09Z
dc.date.available
2021-11-15T14:03:09Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/32715
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-32441
dc.description.abstract
N-heteropolycyclic aromatic compounds are promising organic electron-transporting semiconductors for applications in field-effect transistors. Here, we investigated the electronic properties of 1,3,8,10-tetraazaperopyrene derivatives adsorbed on Au(111) using a complementary experimental approach, namely, scanning tunneling spectroscopy and two-photon photoemission combined with state-of-the-art density functional theory. We find signatures of weak physisorption of the molecular layers, such as the absence of charge transfer, a nearly unperturbed surface state, and an intact herringbone reconstruction underneath the molecular layer. Interestingly, molecular states in the energy region of the sp- and d-bands of the Au(111) substrate exhibit hole-like dispersive character. We ascribe this band character to hybridization with the delocalized states of the substrate. We suggest that such bands, which leave the molecular frontier orbitals largely unperturbed, are a promising lead for the design of organic–metal interfaces with a low charge injection barrier.
en
dc.format.extent
11 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
Molecular structure
en
dc.subject
Reaction products
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften
dc.title
Electronic Properties of Tetraazaperopyrene Derivatives on Au(111): Energy-Level Alignment and Interfacial Band Formation
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.doi
10.1021/acs.jpcc.1c04217
dcterms.bibliographicCitation.journaltitle
Journal of Physical Chemistry C
dcterms.bibliographicCitation.number
36
dcterms.bibliographicCitation.pagestart
19969
dcterms.bibliographicCitation.pageend
19979
dcterms.bibliographicCitation.volume
125
dcterms.bibliographicCitation.url
https://doi.org/10.1021/acs.jpcc.1c04217
refubium.affiliation
Physik
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
1932-7455
refubium.resourceType.provider
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