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From the PbS QDs/Bi2O2Se hybrid photodetector, when PbS quantum dots, performing as Power donors, are photoexcited to an energized point out, they can transfer their Power non-radiatively to Bi2O2Se through dipole–dipole interactions. This will cause electrons in the valence band of Bi2O2Se to transition to the conduction band. Within the PbS QDs