SPP 1093: Dynamics of Electron Transfer Processes at Interfaces

Basic data for this project

Type of project: Main DFG-project hosted at University of Münster
Duration: 01/12/1999 - 31/12/2006 | 2nd Funding period

Description

The aim of this project which is performed in close collaboration between experimentalists and theoretical groups is a fundamental understanding of the dynamics of electron transfer processes between solids and adsorbates. The objects of investigations are processes at the interfaces of physical and chemical relevant model systems. Techniques with femtosecond time resolution and lateral atomic resolution will be employed. The interaction between adsorbate and substrate, as well as transport phenomena of electrons and electronically induced site changing reactions are very important for the understanding of optically and electronically induced reactions. Processes will be locally induced and studied with atomic resolution by tunneling currents, where also a chemical identification is sought. The local changes of the electronic states of adsorbates and the substrate will help to understand the molecular bonds to the substrate. These studies are complemented by the investigation of coherence, dephasing, energy transfer and energy dissipation of optically excited electrons interacting with unoccupied states in adsorbates. Techniques of scanning tunneling spectroscopy and ultrafast laser induced processes are jointly employed to study these processes at interfaces.

Keywords: dynamics; electron transfer; solids; adsorbates