Maxwell-Wagner Effect in Silver Bromide Emulsions

Abstract

Dielectric measurements effected on silver bromide emulsions in the frequency range 10²−10⁷ Hz show a maximum in the absorption curve. This dielectric absorption is interpreted as a consequence of the conductivity of the interstitials in the AgBr crystals. According to this interpretation, the influence of the morphology and size of the AgBr grains, and of the addition of stabilizing agent on the conductivity of the AgBr grains can be detected in a simple manner. A continuous transition from surface conductivity towards bulk conductivity of the AgBr grain is observed.