Characterization of PbS/PVA/GQDs nanocomposite prepared by chemical bath deposition methodTavakkol Tohidi, Kazem Jamshidi-Ghaleh and Rahim Mohammad-RezaeiEur. Phys. J. Appl. Phys., 68 1 (2014) 10403DOI: https://doi.org/10.1051/epjap/2014140157