While in the PbS QDs/Bi2O2Se hybrid photodetector, when PbS quantum dots, performing as Electricity donors, are photoexcited to an enthusiastic point out, they are able to transfer their energy non-radiatively to Bi2O2Se by dipole–dipole interactions. This results in electrons in the valence band of Bi2O2Se to changeover on the conduction https://www.facebook.com/wiijing.net