Fine-tuning chemical passivation over photovoltaic perovskites by varying the symmetry of bidentate acceptor in D–A molecules
Minghuang Guo, Jianbin Xu, Jinting Li, Jianting Huang, Jingwei Zhu, Yafeng Li, Peng Gao, Junming Li, Mingdeng Wei
Abstract
The synergistic passivating effect resulting from the charge-symmetric bidentate CN groups achieved excellent coordination of TA-MN passivator with Pb 2+ defects in perovskite, thus resulting in improved PCE with reduced V OC loss.
Topics & Concepts
PassivationDenticityPerovskite (structure)AcceptorPhotovoltaic systemMaterials scienceMoleculeInorganic chemistryChemistryCrystallographyNanotechnologyCrystal structureLayer (electronics)Condensed matter physicsOrganic chemistryEcologyPhysicsBiologyPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films