Titelangaben
Li, Cheng ; Tscheuschner, Steffen ; Paulus, Fabian ; Hopkinson, Paul E. ; Kießling, Johannes ; Köhler, Anna ; Vaynzof, Yana ; Hüttner, Sven:
Iodine Migration and its Effect on Hysteresis in Perovskite Solar Cells.
In: Advanced Materials.
Bd. 28
(2016)
Heft 12
.
- S. 2446-2454.
ISSN 1521-4095
DOI: https://doi.org/10.1002/adma.201503832
Abstract
The migration and accumulation of iodide ions create a modulation of the respective interfacial barriers causing the hysteresis in methylammonium lead iodide perovskite based solar cells. Iodide ions are identified as the migrating species by measuring temperature dependent current-transients and photoelectron spectroscopy. The involved changes in the built-in potential due to ion migration are directly measured by electroabsorption spectroscop