Iodine Migration and Its Effect on Hysteresis in Perovskite Solar Cells

Overview

Journal Adv Mater

Date 2016 Jan 30

PMID 26823239

Citations 38

Authors

Cheng Li

Steffen Tscheuschner

Fabian Paulus

Paul E Hopkinson

Johannes Kiessling

Anna Kohler

Yana Vaynzof

Sven Huettner

Affiliations

Soon will be listed here.

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.

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