Surface Property Tuning of Methylammonium Lead Iodide by Plasma for Use in Planar Perovskite Solar Cells
Masoud Shekargoftar, J. Pospı́šil, Ján Dugáček, Martin Weiter, Tomáš Homola
Abstract
films were subjected to APP generated by a portable plasma source. A detailed understanding of band energy after plasma treatment is crucial to the investigation of the behavior of the perovskite layer. This study demonstrates a remarkable shift in the valence and conduction bands of a perovskite layer after plasma treatment, while band gap energy remains relatively constant. We found that short plasma treatment of perovskite layers resulted in higher performance and stability of PSCs.
Topics & Concepts
Perovskite (structure)Materials scienceHalidePlasmaIodideBand gapPlanarOptoelectronicsValence (chemistry)NanotechnologyChemical engineeringChemistryInorganic chemistryComputer scienceQuantum mechanicsOrganic chemistryPhysicsComputer graphics (images)EngineeringPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin FilmsQuantum Dots Synthesis And Properties