In the PbS QDs/Bi2O2Se hybrid photodetector, when PbS quantum dots, acting as Power donors, are photoexcited to an thrilled state, they might transfer their Vitality non-radiatively to Bi2O2Se as a result of dipole–dipole interactions. This causes electrons inside the valence band of Bi2O2Se to changeover into the conduction band. Inside the PbS