The aim of this work was to obtain a better understanding of the nature of the negative charge carriers produced in liquid hydrocarbons by ionizing radiation or by electron injection. Quasi-free electron energies in the five aliphatic hexane isomers, benzene and toluene were measured by a photo-electron injection technique and, with the sole exception of n-hexane, were found to be negative. These results were shown to be consistent with the idea of electrons localized in bubbles if polarization in the localized state was accounted for. To explain the variation in electron mobilities from liquid to liquid, an unlimited energy exchange was assumed between localized electrons and their surroundings, which means that energy fluctuations influence the state of the electrons. With this assumption, both mobilities and activation energies could be adequately described for open-chain hydrocarbons, but cyclic compounds seemed to disobey the quantitative predictions.
|Number of pages||13|
|Journal||International Journal for Radiation Physics and Chemistry|
|Publication status||Published - Dec 1973|