Passivating defects and optimizing interfaces to boost the comprehensive performance of carbon-cathode hole-transport-layer-free CsPbI<sub>2</sub>Br solar cells <i>via</i> an ionic liquid
Wenxuan Li, Xiaoling Ma, Hai Liu, Hongyan Cheng, Zhengjun Meng, Xiaoyang Liu, Guodong Wan, Zhe Gao, Yali Li, Yujun Fu, Deyan He, Junshuai Li
Abstract
A carbon-cathode hole-transport-layer-free CsPbI 2 Br perovskite solar cell exhibits reduced defect density in the CsPbI 2 Br layer due to treatment with an ionic liquid ([BMIM][OTF]), resulting in an enhanced power conversion efficiency of 15.39%.
Topics & Concepts
Ionic liquidCathodeLayer (electronics)Materials scienceCarbon fibersChemical engineeringEngineering physicsOptoelectronicsComposite materialChemistryPhysical chemistryPhysicsEngineeringCatalysisOrganic chemistryComposite numberPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin FilmsQuantum Dots Synthesis And Properties