Towards 26% efficiency in inverted perovskite solar cells <i>via</i> interfacial flipped band bending and suppressed deep-level traps
Yiting Zheng, Yaru Li, Rongshan Zhuang, Xueyun Wu, Congcong Tian, Anxin Sun, Chen Chen, Chen Chen, Yongsheng Guo, Yong Hua, Ke Meng, Kai Wu, Chun‐Chao Chen, Chun‐Chao Chen
Abstract
Minimizing interfacial recombination loss in inverted perovskite solar cells is achieved by introducing piperazinium diiodide (PDI) as a surface modifier to passivate deep surface defects and adjust the interface band bending.
Topics & Concepts
PassivationBand bendingPerovskite (structure)Materials scienceRecombinationBendingOptoelectronicsChemical engineeringComposite materialChemistryCrystallographyLayer (electronics)GeneEngineeringBiochemistryPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin FilmsOrganic Electronics and Photovoltaics