An Investigation into Electric Field-Modulated Photoluminescence of Perovskite solar cells

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Abstract

Electric field-modulated photoluminescence (PL) of perovskite solar cells is investigated to gain deeper insight about the role of the mobile ions in organometal halide perovskites. The PL intensity of perovskite solar cells show significant dependence on the polarity of the external electric field and the voltage scanning direction. This phenomenon is discussed in the framework of an ion migration mechanism, which has been widely accounted for the current density-voltage (J-V) hysteresis in perovskite solar cells. The result suggests that the mobile ions not only change the internal electric field of perovskite solar cells, but also have an effect on the recombination of photogenerated charge carriers.

Original languageEnglish (US)
Pages (from-to)3099-3104
Number of pages6
JournalMRS Advances
Volume2
Issue number53
DOIs
StatePublished - Jan 1 2017

Keywords

  • photoemission
  • photovoltaic
  • thin film

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