Within the PbS QDs/Bi2O2Se hybrid photodetector, when PbS quantum dots, performing as Strength donors, are photoexcited to an fired up point out, they will transfer their Strength non-radiatively to Bi2O2Se via dipole–dipole interactions. This will cause electrons while in the valence band of Bi2O2Se to transition into the conduction band. https://waiijing09864.webbuzzfeed.com/28785946/an-unbiased-view-of-waiijing