摘要： Herein, we report the morphological, surface area and detailed electrical properties of PbS nanosheets (PbSNSs). Scanning electron microscope elemental mapping confirms the formation of PbS and homogeneous distribution of Pb and S in final product. Morphology was confirmed as NSs by Transmission electron microscopy. Specific surface area was found to be ~ 7 m2/g through Brunauer–Emmett–Teller analysis. Diffused reflectance spectrum was measured and optical energy gap was estimated ~ 1.284 eV. Such value of energy gap makes it suitable for solar cell and other optoelectronic applications. An increase in photosensitivity with increasing the light intensity was observed due to increase in generation rate of photo-carriers. The recombination value is calculated ~ 0.59, it indicates that the defect states continuously distributed in energy gap. Differential lifetime increases with time and also life time of current carrier is enhanced with light intensity.