Temperature-Dependent Bias Poling and Hysteresis in Planar Organo-Metal Halide Perovskite Photovoltaic Cells

Yunlong Zou, Russell J. Holmes

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

The efficiency of perovskite photovoltaic cells is greatly impacted by the anomalous hysteresis effect. It is found that by applying a forward bias prior to testing, device efficiency (ηp) can be significantly improved. This bias poling effect can be stabilized at temperatures ≤250 K. As a result, hysteresis free operation of a planar perovskite photovoltaic cell is achieved at 170 K with ηp of 19%.

Original languageEnglish (US)
Article number1501994
JournalAdvanced Energy Materials
Volume6
Issue number7
DOIs
StatePublished - Apr 6 2016

Bibliographical note

Funding Information:
This work was supported by the National Science Foundation (NSF) MRSEC Program under Award No. DMR-0819885 and through the NSF PREM Program under Award No. DMR-0934157. Support was also received from the University of Minnesota Initiative for Renewable Energy and the Environment. Y.Z. acknowledges support from a University of Minnesota Doctoral Dissertation Fellowship.

Publisher Copyright:
© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords

  • bias poling
  • hysteresis
  • perovskite photovoltaic cells
  • self-doping
  • solar cells

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