Abstract
The photophysics of charge transfer between the electron donating, surface adsorbed D149 dye and an electron accepting porous ZnO film was investigated by measuring excited state lifetimes using ultrafast transient absorption spectroscopy. We systematically varioed the production scheme of the sample including the electrolyte.
Highlights
The ultrafast dynamics of electronic excitations in graphite has attracted continuous attention over the last decade in experiment and theory
Time-resolved XUV photoemission spectroscopy is employed to monitor the dynamics of photo-excited carriers in graphite at the boundary of the Brillouin zone
Data interpretation is limited by the fact that the different probes applied in previous work provided only indirect access to the electronic states involved in the excitation and relaxation processes
Summary
The ultrafast dynamics of electronic excitations in graphite has attracted continuous attention over the last decade in experiment and theory. Time-resolved XUV photoemission spectroscopy is employed to monitor the dynamics of photo-excited carriers in graphite at the boundary of the Brillouin zone. The experiment provides direct access to the momentum region relevant for optical excitation and relaxation.
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