Influence of the cathode microstructure on the stability of inverted planar perovskite solar cells
Svetlana Sirotinskaya, Roland Schmechel, Niels Benson
Abstract
) and impedance measurements. Our findings substantiate that the metal microstructure has a significant influence on the PSC aging properties. While a strong perovskite decomposition and iodide diffusion to the contacts were detected for devices using Al, Ag or Au cathodes with a polycrystalline microstructure, these effects were strongly reduced when Ni metallization was employed, where a nanocrystalline microstructure was exhibited under the chosen process conditions.
Topics & Concepts
MicrostructureMaterials scienceCathodePerovskite (structure)Nanocrystalline materialCrystalliteChemical engineeringScanning electron microscopeDielectric spectroscopyMetallurgyComposite materialElectrodeNanotechnologyChemistryElectrochemistryPhysical chemistryEngineeringPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin FilmsConducting polymers and applications