Surface passivation with an electron-donating sulfonate group for high-performance and stable perovskite solar cells
Qingquan He, Zenan Zhang, An Chen, Tao Zhang, Xiuyuan Chen, Xiaolong Bian, Gaopeng Xu, Ting Chen, Shicheng Pan, Jiewen Yu, Guochao Lu, Jing Li, Jun Pan
Abstract
A new passivator, 4-aminophenyl sulfone (APS), containing a Lewis base group (SO), could interact with the uncoordinated Pb 2+ on perovskite surface, which not only reduces trap state density but also induces a more p-type surface of perovskite film.
Topics & Concepts
PassivationPerovskite (structure)SulfonateMaterials scienceGroup (periodic table)ChemistryChemical engineeringLayer (electronics)NanotechnologyCrystallographyOrganic chemistryMetallurgySodiumEngineeringPerovskite Materials and ApplicationsOrganic Light-Emitting Diodes ResearchConducting polymers and applications