While in the PbS QDs/Bi2O2Se hybrid photodetector, when PbS quantum dots, acting as Vitality donors, are photoexcited to an excited state, they can transfer their Electricity non-radiatively to Bi2O2Se by way of dipole–dipole interactions. This leads to electrons during the valence band of Bi2O2Se to changeover for the conduction band. In the PbS