Barrier formation at organic interfaces in a Cu(100)-benzenethiolate-pentacene heterostructure

Publication: Research - peer-reviewJournal article – Annual report year: 2008

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The energy level alignment at the metal-organic and organic-organic interfaces of the Cu(100)/benzenethiolate/pentacene heterostructure is studied by photoemission spectroscopy and discussed theoretically using a model that includes, in a consistent way, charge transfer, Pauli repulsion, intrinsic molecular dipoles, and interface screening as a function of coverage. Despite the different nature of the two interfaces, our model provides a unified explanation for the work-function changes at both junctions and enables us to determine the benzenethiolate orientation as a function of coverage.
Original languageEnglish
JournalPhysical Review Letters
Publication date2008
Volume100
Issue2
Pages027601
ISSN0031-9007
DOIs
StatePublished

Bibliographical note

Copyright 2008 American Physical Society

CitationsWeb of Science® Times Cited: 53

Keywords

  • METAL, DIPOLE, ELECTRONIC-STRUCTURE, PLANE, ENERGY-LEVEL ALIGNMENT, SURFACES, PENTACENE, SELF-ASSEMBLED MONOLAYER
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