Rain on methylammonium lead iodide based perovskites: Possible environmental effects of perovskite solar cells

Bekele Hailegnaw, Saar Kirmayer, Eran Edri, Gary Hodes, David Cahen

Research output: Contribution to journalArticlepeer-review

439 Scopus citations

Abstract

The great promise of hybrid organic-inorganic lead halide perovskite (HOIP)-based solar cells is being challenged by its Pb content and its sensitivity to water. Here, the impact of rain on methylammonium lead iodide perovskite films was investigated by exposing such films to water of varying pH values, simulating exposure of the films to rain. The amount of Pb loss was determined using both gravimetric and inductively coupled plasma mass spectrometry measurements. Using our results, the extent of Pb loss to the environment, in the case of catastrophic module failure, was evaluated. Although very dependent on module siting, even total destruction of a large solar electrical power generating plant, based on HOIPs, while obviously highly undesirable, is estimated to be far from catastrophic for the environment.

Original languageEnglish
Pages (from-to)1543-1547
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume6
Issue number9
DOIs
StatePublished - 7 May 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 American Chemical Society.

Keywords

  • hybrid organic-inorganic cells
  • lead pollution
  • perovskite cells
  • photovoltaic cells

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