Improving the Stability and Efficiency of Perovskite Solar Cells by a Bidentate Anilinium Salt
Lucas Scalon, Rodrigo Szostak, Francineide Lopes de Araújo, Karla F. Adriani, Julian F. R. V. Silveira, Willian X. C. Oliveira, Juarez L. F. Da Silva, Caio C. Oliveira, Ana F. Nogueira
Abstract
We report improvement in the perovskite solar cell efficiency and stability after passivation with an organic molecule decorated with two anilinium cations. We compare this salt with its neutral analog and found that the change in the electron density distribution upon protonation and the presence of the halide anion are key to explaining the better passivation ability of the salt. In addition, we show that the counteranion has a significant impact on the performance of the device.
Topics & Concepts
PassivationPerovskite (structure)Salt (chemistry)HalideProtonationDenticityInorganic chemistryChemistryIonMoleculeMaterials scienceChemical engineeringNanotechnologyCrystallographyPhysical chemistryOrganic chemistryCrystal structureEngineeringLayer (electronics)Perovskite Materials and ApplicationsConducting polymers and applicationsOrganic and Molecular Conductors Research