Study on the Structure and Properties of silver Halide Emulsion Microcrystals Ⅲ. The Composite structure of Tabular Grain of Emulsion Microcrystals

A series of tabular silver halide emulsion with different iodide content was prepared by double-jet method with automatic control of pAg. Their grain size distribution, ionic conductiveity and photo electron conductivity were determined. The more iodide was introduced during the precipitation,the more obscure boundary of the composite structure was observed . The relationship between these photo-physical properties and their sensitometric property was presented and discussed.