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Perovskite-perovskite tandem photovoltaics with optimized band gaps.
Eperon, Giles E; Leijtens, Tomas; Bush, Kevin A; Prasanna, Rohit; Green, Thomas; Wang, Jacob Tse-Wei; McMeekin, David P; Volonakis, George; Milot, Rebecca L; May, Richard; Palmstrom, Axel; Slotcavage, Daniel J; Belisle, Rebecca A; Patel, Jay B; Parrott, Elizabeth S; Sutton, Rebecca J; Ma, Wen; Moghadam, Farhad; Conings, Bert; Babayigit, Aslihan; Boyen, Hans-Gerd; Bent, Stacey; Giustino, Feliciano; Herz, Laura M; Johnston, Michael B; McGehee, Michael D; Snaith, Henry J.
Afiliación
  • Eperon GE; Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
  • Leijtens T; Department of Chemistry, University of Washington, Seattle, WA, USA.
  • Bush KA; Department of Materials Science, Stanford University, Lomita Mall, Stanford, CA, USA.
  • Prasanna R; Department of Materials Science, Stanford University, Lomita Mall, Stanford, CA, USA.
  • Green T; Department of Materials Science, Stanford University, Lomita Mall, Stanford, CA, USA.
  • Wang JT; Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
  • McMeekin DP; Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
  • Volonakis G; Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
  • Milot RL; Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK.
  • May R; Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
  • Palmstrom A; Department of Chemistry, University of Washington, Seattle, WA, USA.
  • Slotcavage DJ; Department of Chemical Engineering, Stanford University, Via Ortega, Stanford, CA, USA.
  • Belisle RA; Department of Materials Science, Stanford University, Lomita Mall, Stanford, CA, USA.
  • Patel JB; Department of Materials Science, Stanford University, Lomita Mall, Stanford, CA, USA.
  • Parrott ES; Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
  • Sutton RJ; Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
  • Ma W; Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
  • Moghadam F; SunPreme, Palomar Avenue, Sunnyvale, CA, USA.
  • Conings B; SunPreme, Palomar Avenue, Sunnyvale, CA, USA.
  • Babayigit A; Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
  • Boyen HG; Institute for Materials Research, Hasselt University, Diepenbeek, Belgium.
  • Bent S; Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
  • Giustino F; Institute for Materials Research, Hasselt University, Diepenbeek, Belgium.
  • Herz LM; Institute for Materials Research, Hasselt University, Diepenbeek, Belgium.
  • Johnston MB; Department of Chemical Engineering, Stanford University, Via Ortega, Stanford, CA, USA.
  • McGehee MD; Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK.
  • Snaith HJ; Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
Science ; 354(6314): 861-865, 2016 11 18.
Article en En | MEDLINE | ID: mdl-27856902
We demonstrate four- and two-terminal perovskite-perovskite tandem solar cells with ideally matched band gaps. We develop an infrared-absorbing 1.2-electron volt band-gap perovskite, FA0.75Cs0.25Sn0.5Pb0.5I3, that can deliver 14.8% efficiency. By combining this material with a wider-band gap FA0.83Cs0.17Pb(I0.5Br0.5)3 material, we achieve monolithic two-terminal tandem efficiencies of 17.0% with >1.65-volt open-circuit voltage. We also make mechanically stacked four-terminal tandem cells and obtain 20.3% efficiency. Notably, we find that our infrared-absorbing perovskite cells exhibit excellent thermal and atmospheric stability, not previously achieved for Sn-based perovskites. This device architecture and materials set will enable "all-perovskite" thin-film solar cells to reach the highest efficiencies in the long term at the lowest costs.
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Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Science Año: 2016 Tipo del documento: Article
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PubMed Links

Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Science Año: 2016 Tipo del documento: Article