Additional dye options for spectral sensitization of photo processes in silver stearate—silver bromide system
DOI:
https://doi.org/10.33910/2687-153X-2021-2-3-110-114Keywords:
spectral sensitization, thermally developable photographic materials, silver stearate–silver bromide structure, lightguide mechanism, luminescence of adsorbed dyes, computer calculationsAbstract
The paper discusses spectral sensitized photo processes in silver bromide caused by dyes adsorbed on the surface of silver stearate via the lightguide mechanism and a direct hit of the luminescent light from dye molecules localized near the microcrystal of silver bromide to the microcrystal of silver bromide. The paper submits an estimation of the contribution of dye molecules localized on the surface of silver stearate to overall spectral sensitization. These calculations demonstrate that the contribution of dye molecules adsorbed on the particle of silver stearate to spectral sensitization of silver stearate—silver bromide structure is comparable to the contribution of dye molecules placed on the microcrystal of silver bromide. Dye molecules localized on the particle of silver stearate allow to raise the efficiency of spectral sensitization by 40 to 60 percent.
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