ISSN:
1434-6036
Keywords:
PACS. 79.60.Dp Adsorbed layers and thin films - 73.20.At Surface states, band structure, electron density of states - 73.61.Ph Polymers; organic compounds
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510050711
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