Abstract
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 language | English |
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Journal | Physical Review Letters |
Volume | 100 |
Issue number | 2 |
Pages (from-to) | 027601 |
ISSN | 0031-9007 |
DOIs | |
Publication status | Published - 2008 |
Bibliographical note
Copyright 2008 American Physical SocietyKeywords
- METAL
- DIPOLE
- ELECTRONIC-STRUCTURE
- PLANE
- ENERGY-LEVEL ALIGNMENT
- SURFACES
- PENTACENE
- SELF-ASSEMBLED MONOLAYER