Abstract
A theoretical study of the transmission of low-energy (0–10 eV) electrons incident from vacuum through thin-film molecular solids deposited on a cold metal substrate is presented for the specific case of solid benzene. Using a semi-classical description of electron transport in solids with an energy-independent scattering mean free path and assuming an isotropic electron scattering, the behavior of a penetrating electron in the film is simulated when a large number of scattering events is present. The good agreement obtained between the calculated electron transmission spectra and those observed experimentally shows that our study can successfully be used to determine the probabilities of the various electron scattering processes which occur in the film, as well as the electron mean free path ( l). For solid benzene, l ≈ 8 Å in the investigated electron energy range.
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