Abstract
We demonstrated channeling and funneling of charge carriers through functional interfaces with a configuration of C60 self-assembled monolayer (SAM)/zinc oxide (ZnO) colloidal quantum dots (CQDs)/Ag nanoparticles (NPs)/MAPbI3. The combination of the localized surface plasmon-resonance (LSPR) effect and the electron accepting capability of the C60 SAM enabled the funneling of carriers under illumination. Photoinduced charge transfer is facilitated by the presence of ZnO CQDs, through which the photoexcited carriers in MAPbI3 is channeled into the C60 SAM with a large diffusion length. This demonstrates that LSPR-induced charge retention at the interface is potentially applicable to photomemory devices.
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