A piperidinium salt stabilizes efficient metal-halide perovskite solar cells

Author:

Lin Yen-Hung1ORCID,Sakai Nobuya1ORCID,Da Peimei1,Wu Jiaying2ORCID,Sansom Harry C.1ORCID,Ramadan Alexandra J.1ORCID,Mahesh Suhas1ORCID,Liu Junliang3ORCID,Oliver Robert D. J.1ORCID,Lim Jongchul1ORCID,Aspitarte Lee4ORCID,Sharma Kshama5ORCID,Madhu P. K.5,Morales‐Vilches Anna B.6ORCID,Nayak Pabitra K.15ORCID,Bai Sai7ORCID,Gao Feng7ORCID,Grovenor Chris R. M.3ORCID,Johnston Michael B.1ORCID,Labram John G.4,Durrant James R.28ORCID,Ball James M.1ORCID,Wenger Bernard1ORCID,Stannowski Bernd6ORCID,Snaith Henry J.1ORCID

Affiliation:

1. Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.

2. Department of Chemistry and Centre for Plastic Electronics, Imperial College London, London W12 0BZ, UK.

3. Department of Materials, University of Oxford, Oxford OX1 3PH, UK.

4. School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA.

5. TIFR Centre for Interdisciplinary Sciences, Tata Institute of Fundamental Research, Hyderabad 500107, India.

6. PVcomB, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 12489 Berlin, Germany.

7. Department of Physics, Chemistry and Biology (IFM), Linköping University, 581 83 Linköping, Sweden.

8. Sustainable Product Engineering Centre for Innovative Functional Industrial Coatings (SPECIFIC), College of Engineering, Swansea University, Bay Campus, Swansea SA1 8EN, UK.

Abstract

Stable perovskites with ionic salts Ionic liquids have been shown to stabilize organic-inorganic perovskite solar cells with metal oxide carrier-transport layers, but they are incompatible with more readily processible organic analogs. Lin et al. found that an ionic solid, a piperidinium salt, enhanced the efficiency of positive-intrinsic-negative layered perovskite solar cells with organic electron and hole extraction layers. Aggressive aging testing showed that this additive retarded segregation into impurity phases and pinhole formation in the perovskite layer. Science , this issue p. 96

Funder

Engineering and Physical Sciences Research Council

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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