Comparative photoelectric characteristics of nanostructured Pb$_{1-x}$Sn$_x$Se films obtained by the codeposition and layer-by-layer deposition of PbSe and SnSe

Comparative analysis of the photoelectric characteristics of films of the Pb$_{0.975}$Sn$_{0.025}$Se solid solution obtained by the hydrochemical codeposition of PbSe and SnSe and the Pb$_{0.902}$Sn$_{0.098}$Se solid solution obtained by the layer-by-layer hydrochemical deposition of individual metal selenides (SnSe–PbSe–SnSe–PbSe) with their subsequent heat treatment on air at 523–700 K is performed. It is shown that the films synthesized by layer-by-layer deposition have advantages in terms of their photoelectric characteristics compared with films obtained by codeposition.