Model of pre-existing traps for electrons in polar glasses

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Abstract
A model of pre‐existing traps for electrons in polar glasses is presented. It is assumed that the condensed medium consists of a large number of cells and that each cell is composed of a certain number of molecular dipoles. Two specific cases are investigated. In one case each cell consists of four tetrahedrally located dipoles. In the other it consists of six hexahedrally located dipoles. However, it is assumed that the orientation of the dipoles is totally random. In both cases it is found that the electron is bound inside the cell if the sum of the radial components of the dipole moments in the cell is greater than 3.78 D. The energy of the bound state is calculated as a function of the sum of the radial components of the dipole moments. The relative number of cells with the sum of the radial components of the dipole moments lying between q and q + d q is calculated as a function of q. From these two quantities the relative number of pre‐existing traps with the binding energy of the electron lying between E and E + d E is calculated as a function of E.