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Within the PbS QDs/Bi2O2Se hybrid photodetector, when PbS quantum dots, acting as Electricity donors, are photoexcited to an excited state, they are able to transfer their Strength non-radiatively to Bi2O2Se by way of dipole–dipole interactions. This will cause electrons from the valence band of Bi2O2Se to changeover for the conduction band. Duri