Transmission d'électrons de 0–15 eV à travers des films minces de solides bio-organiques à 300 K : application au tryptophane

Abstract

We present an experimental method for measuring low-energy (0–15 eV) electron transmission through bio-organic, solid, thin films at 300 K. This method is used to determine the energy of the first electronic transitions and the energy of the lowest conduction level of an electron in those solids. By measuring the density and thickness of the films precisely and analyzing the experimental data with a theoretical simulation model, it is possible, for the first time, to estimate values of the interaction cross sections for low-energy electrons in a biological solid. As an illustration of the method, results obtained for tryptophan are presented. [Translated by the journal]