Abstract
Staying in the black phase Hybrid perovskite solar cells often use the more thermally stable formamidinium (FA) cation rather than methylammonium, but its larger size can create lattice distortion that results in an inactive yellow phase. Turren-Cruz et al. show that by using iodide instead of bromide as the anion (to create a redder bandgap) and an optical mix of cesium, rubidium, and FA cations, they can make solar cells with a stabilized efficiency of more than 20%. No heating steps above 100°C were needed to create the preferred black phase. Science , this issue p. 449
Keywords
FormamidiniumPerovskite (structure)CaesiumIodideRubidiumPlanarBand gapPhase (matter)BromideMaterials scienceIonOptoelectronicsChemistryMineralogyInorganic chemistryCrystallographyPotassiumComputer scienceOrganic chemistry
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Publication Info
- Year
- 2018
- Type
- article
- Volume
- 362
- Issue
- 6413
- Pages
- 449-453
- Citations
- 1007
- Access
- Closed
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Cite This
Silver‐Hamill Turren‐Cruz,
Anders Hagfeldt,
Michael Saliba
(2018).
Methylammonium-free, high-performance, and stable perovskite solar cells on a planar architecture.
Science
, 362
(6413)
, 449-453.
https://doi.org/10.1126/science.aat3583
Identifiers
- DOI
- 10.1126/science.aat3583