articleEnergy & Environmental ScienceJan 1, 2016HYBRID OA

Cesium-containing triple cation perovskite solar cells: improved stability, reproducibility and high efficiency

MSMichael SalibaTMTaisuke MatsuiJSJi-Youn SeoKDKonrad DomanskiJCJuan‐Pablo Correa‐Baena

Interface (United States) · Photonics (United States) · +4 more institutions

PubMed
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Abstract

Today's best perovskite solar cells use a mixture of formamidinium and methylammonium as the monovalent cations. With the addition of inorganic cesium, the resulting triple cation perovskite compositions are thermally more stable, contain less phase impurities and are less sensitive to processing conditions. This enables more reproducible device performances to reach a stabilized power output of 21.1% and ∼18% after 250 hours under operational conditions. These properties are key for the industrialization of perovskite photovoltaics.

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Topics & keywords

Topics
Keywords
  • Formamidinium
  • Perovskite (structure)
  • Caesium
  • Photovoltaics
  • Reproducibility
  • Impurity
  • Materials science
  • Phase (matter)
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