IONIC-CONDUCTIVITY IN AGBR AGI MICROCRYSTALS

Dielectric loss measurements were used to determine the ionic conducti vity of AgBr/Agl microcrystals in photographic emulsions. Generally, a n increase of the conductivity and a decrease of the global activation enthalpy with increasing AgI content was observed. Due to the importa nce of AgBr/Agl core-shell systems for current phot graphic emulsion t echnology, the dielectric loss behaviour of 4 emulsions with cubic and octahedral crystal morphology was examined. Furthermore, the influenc e of spectral sensitizers and the stabilizer Tetrazaaindene on the die lectric loss signals of these systems was studied.