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May 3, 20265 citations

Bypassing the yellow phase for extremely stable formamidinium lead iodide perovskite solar cells.

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RGRabindranath GaraiIMIsaac MetcalfNNNilanjana Nandi

Key Points

  • To explore how chloride incorporation affects the stability of formamidinium lead iodide perovskite solar cells.
  • Used modeling and structural studies to analyze energetics of formation and degradation pathways.
  • Fabricated films with 15 mole % FA chloride and 0.5 mole % BA coadditives.
  • Chloride incorporation improves the energetics of formation pathways.
  • Altered degradation pathways indicate enhanced stability of the films.

Abstract

Using modeling and structural studies, we show that chloride incorporation in formamidinium lead iodide (FAPI) perovskites alters the energetics of both the formation and degradation pathways. We fabricated films with two coadditives [15 mole % FA chloride (FACl) and 0.5 mole % BA

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Cite This Study

Garai et al. (2026) studied this question.

synapsesocial.com/papers/69f6e5618071d4f1bdfc61e6https://doi.org/10.1126/science.aeb7992
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