Interpreting accelerated tests on perovskite modules using photooxidation of MAPbI3 as an example

Ingrid L. Repins, Michael Owen-Bellini, Michael D. Kempe, Michael G. Deceglie, Joseph J. Berry, Nutifafa Y. Doumon, Timothy J. Silverman, Laura T. Schelhas

Research output: Contribution to journalArticlepeer-review


Solar panels (modules) based on metal halide perovskites are following a fast track to commercialization. Unlike more established solar cell materials, there are not yet decades-long field observations to increase consumer confidence. The “physics and chemistry of failure” approach is used in other industries and estimates product degradation based on laboratory accelerated tests integrated with an understanding of degradation mechanisms. This work uses that approach to quantify the relationship between accelerated tests and projected product behavior for metal halide perovskite modules. Degradation involving photooxidation of methylammonium lead iodide is used to illustrate the method. Acceleration factors in common accelerated tests are found to be low. Conclusions emphasize that the accelerated tests on photovoltaics should not be interpreted as equivalent across module types or as a green light for commercialization unless supported by the appropriate field data or physics and chemistry of failure analysis.

Original languageEnglish (US)
Article number101969
JournalCell Reports Physical Science
Issue number5
StatePublished - May 15 2024

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Materials Science
  • General Engineering
  • General Energy
  • General Physics and Astronomy

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