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Updated: Mar 26, 2026

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
Iodine Migration and its Effect on Hysteresis in Perovskite Solar Cells
Cheng Li1, Steffen Tscheuschner2, Fabian Paulus3
1Macromolecular Chemistry I, University of Bayreuth, Universitätstr. 30, 95447, Bayreuth, Germany.
Abstract:
The migration and accumulation of iodide ions create a modulation of the respective interfacial barriers causing the hysteresis in solar cells based on methylammonium lead iodide perovskites. 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 spectroscopy.

