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

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 m...

Full description

Saved in:
Bibliographic Details
Published in:Physical review letters 2008-01, Vol.100 (2), p.027601-027601, Article 027601
Main Authors: Betti, M G, Kanjilal, A, Mariani, C, Vázquez, H, Dappe, Y J, Ortega, J, Flores, F
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.100.027601