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Anomalous Hysteresis in Perovskite Solar Cells

Snaith, Henry J., Abate, Antonio, Ball, James M., Eperon, Giles E., Leijtens, Tomas, Noel, Nakita K., Stranks, Samuel D., Wang, Jacob Tse-Wei, Wojciechowski, Konrad and Zhang, Wei (2014) Anomalous Hysteresis in Perovskite Solar Cells The Journal of Physical Chemistry Letters, 5 (9). pp. 1511-1515.

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Perovskite solar cells have rapidly risen to the forefront of emerging photovoltaic technologies, exhibiting rapidly rising efficiencies. This is likely to continue to rise, but in the development of these solar cells there are unusual characteristics that have arisen, specifically an anomalous hysteresis in the current–voltage curves. We identify this phenomenon and show some examples of factors that make the hysteresis more or less extreme. We also demonstrate stabilized power output under working conditions and suggest that this is a useful parameter to present, alongside the current-voltage scan derived power conversion efficiency. We hypothesize three possible origins of the effect and discuss its implications on device efficiency and future research directions. Understanding and resolving the hysteresis is essential for further progress and is likely to lead to a further step improvement in performance.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Snaith, Henry J.
Abate, Antonio
Ball, James M.
Eperon, Giles E.
Leijtens, Tomas
Noel, Nakita K.
Stranks, Samuel D.
Wang, Jacob Tse-Wei
Wojciechowski, Konrad
Date : 24 March 2014
DOI : 10.1021/jz500113x
Uncontrolled Keywords : Current−voltage curves; Hysteresis; Perovskite; Photovoltaics; Solar cell; Stability
Depositing User : Clive Harris
Date Deposited : 02 Jun 2017 11:38
Last Modified : 16 Jan 2019 18:53

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