Photoconductivity decay kinetics in silver bromide photographic films

Abstract
There is a component of the complex decay of the photoconductivity signal for silver bromide photographic materials that is intermediate in time constant and in temperature dependence between the initial electron trapping and the subsequent ionic processes. Previous attempts to explain this transient have not been totally satisfactory. We propose that it is a thermally activated lattice relaxation of the otherwise shallow coulombic electron states.