Sensitization of Formate Dopant to Cubic and {100} Tabular Silver Chloride Microcrystals

doi:10.7517/j.issn.1674-0475.2006.05.343

Abstract

Abstract: Silver chloride cubic emulsions and {100} T-grain emulsions doped by formate on different positions of microcrystal were prepared. As a hole-traping dopant,formate can enhance the photographic sensitivity of the emulsions as high as 3—8 times without an increase in fog density.It was noted that the photosensitivity of the emulsions homogeneously doped by formate was higher than that of the emulsions doped only on surfaces.Synergetic sensitizing effects of the doped formate and sulfur or sulfur-plus-gold or spectral sensitization were observed in every doped emulsion,which can improve the sensitometric characteristics of the emulsion further.

Key words: silver chloride emulsion, {100} tabular grain, formate, hole-traping dopant, chemical sensitization

CLC Number:

TQ57

LI Zhi, ZHENG Tong, SHI Jing-jing, WANG Ying, PENG Bi-xian, CHEN Li-juan. Sensitization of Formate Dopant to Cubic and {100} Tabular Silver Chloride Microcrystals[J]. Imaging Science and Photochemistry, 2006, 24(5): 343-350.

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