| 摘要 |
PURPOSE:To enhance crystallinity of cadmium sulfide and uiforty of the particles by burning a mixture of cadmium sulfide and a flux at a specified temp. and treating the surface of the obtanined cadmium sulfide with sulfuric acid specified in concn. CONSTITUTION:A mixture of CdS and >=20wt% flux is burned at temp. >=50 deg.C higher than the m.p. of the flux, such as 500 deg.C. After the burning, its surface is treated with 0.5-5.0 N sulfuric acid. The CdS thus obtained is high in crystallinity, it is found to consist of nonagglomerated single particles to each other and to have smooth surfaces by shape observation with a scanning type electron microscope. Since the particles are uniform in shape and size, the face of the coated photoconductive layer is dense and smooth, and an image good in quality is obtained. |
