Additive engineering with 2,8-dibromo-dibenzothiophene-<i>S</i>,<i>S</i>-dioxide enabled tin-based perovskite solar cells with 14.98% power conversion efficiency
Xianyong Zhou, Wenbo Peng, Zhixin Liu, Yong Zhang, Luozheng Zhang, Meiqing Zhang, Chang Liu, Lei Yan, Xingzhu Wang, Baomin Xu
Abstract
BrDS doping can effectively inhibit the oxidation of Sn 2+ and passivate grain boundary defects and point defects in tin-based perovskite films. As a result, the device achieved a PCE of 14.98% with a certified efficiency of 14.36%.
Topics & Concepts
Perovskite (structure)Materials scienceTin dioxideTinPassivationEnergy conversion efficiencyDopingGrain boundaryChemical engineeringOptoelectronicsMetallurgyNanotechnologyLayer (electronics)MicrostructureEngineeringPerovskite Materials and ApplicationsConducting polymers and applicationsChalcogenide Semiconductor Thin Films