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From the PbS QDs/Bi2O2Se hybrid photodetector, when PbS quantum dots, acting as Vitality donors, are photoexcited to an thrilled point out, they might transfer their Power non-radiatively to Bi2O2Se by dipole–dipole interactions. This causes electrons during the valence band of Bi2O2Se to changeover to the conduction band. In the PbS QDs/Bi2O2Se