Homogeneity of Cadmium Selenide-Cadmium Sulfide Solid Solutions by X-Ray Fluorescence

摘要

The homogeneity of cadmium selenide-cadmium sulfide solid solutions was investigated by the x-ray fluorescence method. Both 'as grown' or assumed homogeneous crystals and purposely manufactured non-homogeneous crystals were used. It was concluded from the x-ray fluorescence analysis of standards that any results within 3% of each other were due to statistical variations, but results with deviations greater than 3% were due to the composition change within the crystal. The homogeneity of four assumed homogeneous and four non-homogeneous crystals was examined by scanning the crystals with stationary collimators of small aperture. The assumed homogeneous crystals showed results within 3% therefore they were considered homogeneous, but the purposely manufactured non-homogeneous crystals were found to be truely nonhomogeneous. (Author)