Abstract:
Synchrotron radiation (SR) pulses are used to eject electrons from a gold substrate covered with organized organic thin films (OOTF) in order to investigate their transmission probability through the OOTF as a function of the electron initial kinetic energy. By variation of the SR photon energy within a few eV above the Au-4f binding energy levels we controlled the initial kinetic energy of the substrate electrons. The observed oscillations in the transmission probability for porphyrin-based films as a function of the kinetic energy is argued to be due to effects of band structure above the vacuum level in the well-ordered molecular adsorbate. We also present valence photoemission spectra (PES) of different type OOTF and demonstrate how their coverage of the substrate affects the PES.
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Received 24 July 1998
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Haran, A., Naaman, R., Ashkenasy, G. et al. Electron transmission through organized organic thin films studied by discrete initial electron kinetic energies. Eur. Phys. J. B 8, 445–451 (1999). https://doi.org/10.1007/s100510050711
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DOI: https://doi.org/10.1007/s100510050711