PURPOSE: To obtain simple grains of photoconductive CdSSe for electrophotography with high crystallizability, superior photoconductivity, etc. by adding a proper amount of a flux to a mixture of CdS grains with CdSe grains, mixing them, and calcining this mixture in 2 steps.
CONSTITUTION: To 100pts.wt. mixture of CdS grains with CdSe grains is added ≥20pts.wt. flux such as CdCl2 or ZnCl2, and they are mixed. This mixture is calcined at a temp. ≥50°C above the m.p. of the flux, washed and dried to isolate CdSSe grains. The grains are filled into a quartz crucible or the like and calcined again. By this method photoconductive CdSSe grains of a uniform shape are obtd. The resulting CdSSe grains have high resolution and superior suitability to coating, and they are hardly deteriorated when used repeatedly in an electrophotographic process.
KAJITA ISAMU
NOMURA ICHIROU
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