Effective defect passivation with a designer ionic molecule for high-efficiency vapour-deposited inorganic phase-pure CsPbBr<sub>3</sub> perovskite solar cells
Guo Ru-xin, Junmin Xia, Hao Gu, Xuke Chu, Yan Zhao, Xianghuan Meng, Zhiheng Wu, Jiangning Li, Yanyan Duan, Zhenzhen Li, Zhaorui Wen, Shi Chen, Yongqing Cai, Chao Liang, Yonglong Shen, Guichuan Xing, Wei Zhang, Guosheng Shao
Abstract
Effective passivation of defects by a designer ionic liquid enables significantly lowered trap density in vapor deposited CsPbBr 3 , thus achieving highest PV cell efficiencies: 11.21% (0.04 cm 2 ) and 9.18% (1 cm 2 ).
Topics & Concepts
PassivationPerovskite (structure)Materials scienceIonic bondingMoleculePhase (matter)Ionic liquidSolar cellChemical engineeringInorganic chemistryOptoelectronicsIonNanotechnologyChemistryLayer (electronics)CatalysisOrganic chemistryEngineeringPerovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyQuantum Dots Synthesis And Properties