4.8 Article

Strontium Insertion in Methylammonium Lead Iodide: Long Charge Carrier Lifetime and High Fill-Factor Solar Cells

Journal

ADVANCED MATERIALS
Volume 28, Issue 44, Pages 9839-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201603016

Keywords

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Funding

  1. European Union H2020 project INFORM [675867]
  2. Spanish Ministry of Economy and Competitiveness (MINECO) via the Unidad de Excelencia Maria de Maeztu [MDM-2015-0538, MAT2014-55200-R, PCIN-2015-255]
  3. Generalitat Valenciana [Prometeo/2012/053]
  4. hybrid perovskite solar cell program of the National Center for Photovoltaics - U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Office of Solar Energy Technology [DE-AC36-08GO28308DOE]
  5. National Renewable Energy Laboratory (NREL)
  6. U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-76SF00515]

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The addition of Sr2+ in CH3NH3PbI3 perovskite films enhances the charge carrier collection efficiency of solar cells leading to very high fill factors, up to 85%. The charge carrier lifetime of Sr2+-containing perovskites is in excess of 40 mu s, longer than those reported for perovskite single crystals.

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