AVS 51st International Symposium
    Surface Science Wednesday Sessions
       Session SS+OF-WeA

Invited Paper SS+OF-WeA5
Electronic Properties of Interfaces between Organic Semiconductors and Metals

Wednesday, November 17, 2004, 3:20 pm, Room 213B

Session: Contacts to Molecules and Molecular Films
Presenter: M. Knupfer, Leibniz Institute for Solid State and Materials Research Dresden, Germany
Correspondent: Click to Email
The electronic properties and the energy level alignment of interfaces between organic semiconductors and metals have been studied using photoemission spectroscopy in the valence as well the core level region. Different contrubutions to the frequently observed interface dipoles are discussed. In particular, the role of a reduction of the metal workfunction in comparison to clean, uncovered surfaces and image charge screening will be addressed. Furthermore, there are several examples where a charge transfer is observed at the interface, in particular for technologically relevant cases, which is essential for the understanding of charge transport acroos the corresponding interface.