Abstract
Internal photoemission for transport analysis (IPTA) and low energy electron transmission (LEET) experiments allow the determination of energy dependent quasi-elastic (acoustic phonon) and inelastic (LO-phonon) scattering rates of hot electrons in wide bandgap insulators for energies smaller than the electron excitation threshold. A model for the analysis of experimental data is presented. The model is used to analyse IPTA and LEET experiments in a variety of insulators such as rare gas solids, amorphous SiO2 and organic dielectrics. The results are compared to scattering rates obtained from electron-phonon interaction theory. The implications of the energy dependence of scattering rates on high field electron transport are discussed.
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