| DATE: |
2008-06-17 13:30 - 15:00 |
| PLACE: |
Conference Room in the PF Bldg. |
| TITLE: |
Charge-transport mechanisms in thin organic films and at interfaces studied using advanced photoelectron spectroscopies |
| SPEAKER: |
Dr. Rainer Friedlein (School of Materials Science, Japan Advanced Institute of Science and Technology) |
| LANGUAGE: |
English |
| URL: |
http://pfwww.kek.jp/pf-seminar/ |
| ABSTRACT: |
In the rapidly developing field of organic electronics, many elementary processes behind the transport of charge carriers within the bulk of the materials and at interfaces are only partially understood. In this presentation, I review our recent studies of parameters essential for the charge transport in well-defined mono- and multilayer films of polyaromatic molecules, using (angle-resolved) ultraviolet photoelectron and resonant photoelectron spectroscopic techniques. In particular, the intramolecular charge-vibrational coupling related to the geometric relaxation accompanying a charge, the dynamic screening of individual charge carriers, the intermolecular band width related to the charge transfer integral, as well as structure-and orbital-dependent femtosecond charge transfer processes at organic/inorganic interfaces are discussed. |
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