Efficient Wide-Bandgap Mixed-Cation and Mixed-Halide Perovskite Solar Cells by Vacuum Deposition
Lidón Gil‐Escrig, Chris Dreeßen, Francisco Palazón, Zafer Hawash, Ellen Moons, Steve Albrecht, Michele Sessolo, Henk J. Bolink
Abstract
allows the relative Br/Cs content to be decoupled and controlled, resulting in homogeneous perovskite films with a bandgap in the 1.7-1.8 eV range and no detectable halide segregation. Solar cells based on 1.75 eV bandgap perovskites show efficiency up to 16.8% and promising stability, maintaining 90% of the initial efficiency after 2 weeks of operation.
Topics & Concepts
Band gapPerovskite (structure)HalideMaterials scienceVacuum depositionOptoelectronicsThin filmSublimation (psychology)Deposition (geology)Wide-bandgap semiconductorNanotechnologyChemistryInorganic chemistryCrystallographyBiologySedimentPsychotherapistPaleontologyPsychologyPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin FilmsQuantum Dots Synthesis And Properties