Two birds with one stone: dual grain-boundary and interface passivation enables >22% efficient inverted methylammonium-free perovskite solar cells
Saba Gharibzadeh, Paul Faßl, Ihteaz M. Hossain, Pascal Rohrbeck, M. Frericks, M. Schmidt, The Duong, Motiur Rahman Khan, Tobias Abzieher, Bahram Abdollahi Nejand, Fabian Schackmar, Osbel Almora, Thomas Feeney, Roja Singh, D. Fuchs, Uli Lemmer, Jan P. Hofmann, Stefan A. L. Weber, Ulrich W. Paetzold
Abstract
We present a dual passivation approach for p–i–n perovskite solar cells using phenethylammonium chloride that simultaneously passivates defects at the grain boundaries and the perovskite/C 60 interface, thus substantially enhancing both V OC and FF.
Topics & Concepts
PassivationGrain boundaryPerovskite (structure)Materials scienceDual (grammatical number)Interface (matter)Grain sizeOptoelectronicsCrystallographyMetallurgyMicrostructureChemistryNanotechnologyComposite materialLayer (electronics)Capillary actionLiteratureCapillary numberArtPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin FilmsConducting polymers and applications