Post-Treatment-Free Dual-Interface Passivation via Facile 1D/3D Perovskite Heterojunction Construction.

ABSTRACT: For achieving high-efficiency perovskite solar cells, it is almost always necessary to substantially passivate defects and protect the perovskite structure at its interfaces with charge transport layers. Such a modification generally involves the post-treatment of the deposited perovskite film by spin coating, which cannot meet the technical demands of scaling up the production of perovskite photovoltaics. In this work, we demonstrate one-step construction of buried and capped double 1D/3D heterojunctions without the need for any post-treatment, which is achieved through facile tetraethylammonium trifluoroacetate (TEATFA) prefunctionalization on the SnO₂ substrate. The functional TEATFA salt is first deposited onto the SnO₂ substrate and reacts on this buried interfac

SUBMITTER: Wei N 

PROVIDER: S-EPMC10751777 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature