The Latent Image Formation Process of Silver Salt Photothermographic Materials: Photoconductivity Decay Kinetics in Silver Halide Crystals with Silver Carboxylate

摘要

In exploring the latent image formation mechanism of silver salt photothermographic materials, we measured the microwave photoconductivity of nanometer-scale silver halide crystal emulsions under optimal conditions and thereby observed the influence of silver carboxylate on those emulsions. We found that as the concentration of silver carboxylate increased, so did the number of shallow electron traps. In addition, when silver carboxylate was present, the lifetime of excited electrons showed quick decay. These observations suggest that silver carboxylate greatly affects latent image formation in silver salt photothermographic materials.