The free photoelectron signals of spectral sensitized AgCl emulsion with different sensitization concentrations are obtained from microwave absorption dielectric spectrum experiment. It is found that when sensitization concentration is small (0.04 mg dye per 40 g AgCl emulsion) or great (4 mg dye per 40 g AgCl emulsion), the decay of free photoelectron of sensitized emulsion is slower or faster than that of pure emulsions; when sensitization concentration is between the above values (0.4 mg dye per 40 g AgCl emulsion), the decay of free photoelectron is the same for sensitized and pure emulsion. The results indicate that the adsorbed green-sensitizing dye on the surface of cubic AgCl microcrystals takes on different actions with different sensitization concentrations.
© 2005 Chinese Optics Letters
(040.5190) Detectors : Photographic film
(110.5200) Imaging systems : Photography
(160.5140) Materials : Photoconductive materials
(210.4810) Optical data storage : Optical storage-recording materials
(300.6500) Spectroscopy : Spectroscopy, time-resolved
Rongxiang Zhang, Xiaowei Li, Jixian Zhang, Weidong Lai, and Xiaodong Tian, "Photoelectron decay characteristic of cubic AgCl emulsion sensitized by green-sensitizing dye," Chin. Opt. Lett. 3, S298-S300 (2005)