Title: Optical and structural properties of Sn and Ag-doped PbS/PVA nanocomposites synthesized by chemical bath deposition Authors: Ali Fatemi, Tavakkol Tohidi, Kazem Jamshidi-Galeh, Milad Rasouli, and Kostya (Ken) Ostrikov Description: This dataset includes the XRD patterns of undoped PbS/PVA and 0.1, 0.3, and 0.6 µM Ag-doped PbS/PVA and 0.2, 0.4, and 0.8 µM Sn-doped PbS/PVA nanocomposite samples. The X-ray diffraction pattern was recorded using D8-Advance Bruker, Cu-Kα radiation (λ = 1.5406 Å). We hope that this dataset will be useful for researchers studying advanced functional optical nanostructured materials synthesis by green synthesis approaches.