Understanding Degradation Mechanisms and Improving Stability of Perovskite Photovoltaics

Tomas Leijtens, Caleb Boyd, Rongrong Cheacharoen, Michael McGehee

Research output: Contribution to journalArticlepeer-review

1162 Scopus Citations


This review article examines the current state of understanding in how metal halide perovskite solar cells can degrade when exposed to moisture, oxygen, heat, light, mechanical stress, and reverse bias. It also highlights strategies for improving stability, such as tuning the composition of the perovskite, introducing hydrophobic coatings, replacing metal electrodes with carbon or transparent conducting oxides, and packaging. The article concludes with recommendations on how accelerated testing should be performed to rapidly develop solar cells that are both extraordinarily efficient and stable.
Original languageAmerican English
Pages (from-to)3418-3451
Number of pages34
JournalChemical Reviews
Issue number5
StatePublished - 2019

NREL Publication Number

  • NREL/JA-5K00-72914


  • degradation
  • metal halides
  • perovskite
  • perovskite solar cells
  • transparent conducting oxides


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