Elimination of light-induced degradation at the nickel oxide-perovskite heterojunction by aprotic sulfonium layers towards long-term operationally stable inverted perovskite solar cells
Tianhao Wu, Luis K. Ono, Rengo Yoshioka, Chenfeng Ding, Congyang Zhang, Silvia Mariotti, Jiahao Zhang, Kirill Mitrofanov, Xiao Liu, Hiroshi Segawa, Ryota Kabe, Liyuan Han, Yabing Qi
Abstract
This work introduces an aprotic sulfonium buffer layer at the nickel oxide–perovskite heterojunction to eliminate the multi-step photochemical reactions, which leads to inverted perovskite solar cells with long-term operational stability.
Topics & Concepts
Perovskite (structure)SulfoniumNickel oxideHeterojunctionMaterials scienceOxideNickelDegradation (telecommunications)Layer (electronics)Chemical engineeringOptoelectronicsInorganic chemistryChemistryNanotechnologySalt (chemistry)MetallurgyOrganic chemistryElectronic engineeringEngineeringPerovskite Materials and ApplicationsConducting polymers and applicationsChalcogenide Semiconductor Thin Films