During the PbS QDs/Bi2O2Se hybrid photodetector, when PbS quantum dots, performing as Vitality donors, are photoexcited to an excited point out, they could transfer their Strength non-radiatively to Bi2O2Se by means of dipole–dipole interactions. This leads to electrons during the valence band of Bi2O2Se to transition towards the conduction band. https://waiijing65319.blogadvize.com/34857305/waiijing-fundamentals-explained