Abstract

AbstractThe explanation for the direction of photocurrent due to the Dember effect in silver halide emulsion grains is given for the situations where spectrally unsensitized silver halide grains were exposed to blue light and spectrally sensitized grains to green-red light.The change of the Dember effect by varying the condition of the emulsion grains, that is, atmospheric condition, preexposure, chemical sensitization and desensitization, temperature dependence of photovoltage relaxation, the wavelength of the incident light and the ionic conductivity of silver halide grains, was observed and discussed.

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