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A piperidinium salt stabilizes efficient metal-halide perovskite solar cells.
Lin, Yen-Hung; Sakai, Nobuya; Da, Peimei; Wu, Jiaying; Sansom, Harry C; Ramadan, Alexandra J; Mahesh, Suhas; Liu, Junliang; Oliver, Robert D J; Lim, Jongchul; Aspitarte, Lee; Sharma, Kshama; Madhu, P K; Morales-Vilches, Anna B; Nayak, Pabitra K; Bai, Sai; Gao, Feng; Grovenor, Chris R M; Johnston, Michael B; Labram, John G; Durrant, James R; Ball, James M; Wenger, Bernard; Stannowski, Bernd; Snaith, Henry J.
Afiliação
  • Lin YH; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK. yen-hung.lin@physics.ox.ac.uk henry.snaith@physics.ox.ac.uk.
  • Sakai N; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
  • Da P; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
  • Wu J; Department of Chemistry and Centre for Plastic Electronics, Imperial College London, London W12 0BZ, UK.
  • Sansom HC; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
  • Ramadan AJ; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
  • Mahesh S; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
  • Liu J; Department of Materials, University of Oxford, Oxford OX1 3PH, UK.
  • Oliver RDJ; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
  • Lim J; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
  • Aspitarte L; School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA.
  • Sharma K; TIFR Centre for Interdisciplinary Sciences, Tata Institute of Fundamental Research, Hyderabad 500107, India.
  • Madhu PK; TIFR Centre for Interdisciplinary Sciences, Tata Institute of Fundamental Research, Hyderabad 500107, India.
  • Morales-Vilches AB; PVcomB, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 12489 Berlin, Germany.
  • Nayak PK; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
  • Bai S; TIFR Centre for Interdisciplinary Sciences, Tata Institute of Fundamental Research, Hyderabad 500107, India.
  • Gao F; Department of Physics, Chemistry and Biology (IFM), Linköping University, 581 83 Linköping, Sweden.
  • Grovenor CRM; Department of Physics, Chemistry and Biology (IFM), Linköping University, 581 83 Linköping, Sweden.
  • Johnston MB; Department of Materials, University of Oxford, Oxford OX1 3PH, UK.
  • Labram JG; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
  • Durrant JR; School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA.
  • Ball JM; Department of Chemistry and Centre for Plastic Electronics, Imperial College London, London W12 0BZ, UK.
  • Wenger B; Sustainable Product Engineering Centre for Innovative Functional Industrial Coatings (SPECIFIC), College of Engineering, Swansea University, Bay Campus, Swansea SA1 8EN, UK.
  • Stannowski B; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
  • Snaith HJ; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
Science ; 369(6499): 96-102, 2020 07 03.
Article em En | MEDLINE | ID: mdl-32631893
ABSTRACT
Longevity has been a long-standing concern for hybrid perovskite photovoltaics. We demonstrate high-resilience positive-intrinsic-negative perovskite solar cells by incorporating a piperidinium-based ionic compound into the formamidinium-cesium lead-trihalide perovskite absorber. With the bandgap tuned to be well suited for perovskite-on-silicon tandem cells, this piperidinium additive enhances the open-circuit voltage and cell efficiency. This additive also retards compositional segregation into impurity phases and pinhole formation in the perovskite absorber layer during aggressive aging. Under full-spectrum simulated sunlight in ambient atmosphere, our unencapsulated and encapsulated cells retain 80 and 95% of their peak and post-burn-in efficiencies for 1010 and 1200 hours at 60° and 85°C, respectively. Our analysis reveals detailed degradation routes that contribute to the failure of aged cells.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article