Origin of J-V Hysteresis in Perovskite Solar Cells

Kai Zhu, Mengjin Yang, Bo Chen, Shashank Priya

Research output: Contribution to journalArticlepeer-review

627 Scopus Citations

Abstract

High-performance perovskite solar cells (PSCs) based on organometal halide perovskite have emerged in the past five years as excellent devices for harvesting solar energy. Some remaining challenges should be resolved to continue the momentum in their development. The photocurrent density-voltage (J-V) responses of the PSCs demonstrate anomalous dependence on the voltage scan direction/rate/range, voltage conditioning history, and device configuration. The hysteretic J-V behavior presents a challenge for determining the accurate power conversion efficiency of the PSCs. Here, we review the recent progress on the investigation of the origin(s) of J-V hysteresis behavior in PSCs. We discuss the impact of slow transient capacitive current, trapping and detrapping process, ion migrations, and ferroelectric polarization on the hysteresis behavior. The remaining issues and future research required toward the understanding of J-V hysteresis in PSCs will also be discussed.

Original languageAmerican English
Pages (from-to)905-917
Number of pages13
JournalJournal of Physical Chemistry Letters
Volume7
Issue number5
DOIs
StatePublished - 3 Mar 2016

Bibliographical note

Publisher Copyright:
© 2016 American Chemical Society.

NREL Publication Number

  • NREL/JA-5900-65722

Keywords

  • hysteresis behavior
  • perovskite solar cells (PSC)
  • photocurrent density-voltage (J-V)

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