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The possibility of obtaining films of substitutional solid solutions in a sulfide system via ionic exchange at the interface between the CdS film and the aqueous solution of a lead salt has been shown. The composition, structure, and morphology of freshly deposited films of CdS, PbS, and CdS layers held for 60-540 min at 353-368 K in an aqueous solution of lead acetate have been studied. It has been established by the methods of Raman spectroscopy (RS) and glancing angle X ray diffraction (GAXRD) that, due to ion exchange processes, the formation of supersaturated substitutional solid solutions Cd x Pb 1 -x S (x ≤ 0.31) occurs in the film, the cadmium content in which decreases gradually over the film thickness.

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