A generic interface to reduce the efficiency-stability-cost gap of perovskite solar cells

Author:

Hou Yi12ORCID,Du Xiaoyan3,Scheiner Simon4,McMeekin David P.5ORCID,Wang Zhiping5ORCID,Li Ning1ORCID,Killian Manuela S.6ORCID,Chen Haiwei1ORCID,Richter Moses1ORCID,Levchuk Ievgen1ORCID,Schrenker Nadine7ORCID,Spiecker Erdmann7,Stubhan Tobias1,Luechinger Norman A.8,Hirsch Andreas9,Schmuki Patrik6ORCID,Steinrück Hans-Peter3ORCID,Fink Rainer H.3ORCID,Halik Marcus4ORCID,Snaith Henry J.5ORCID,Brabec Christoph J.110ORCID

Affiliation:

1. Institute of Materials for Electronics and Energy Technology (i-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Martensstraße 7, 91058 Erlangen, Germany.

2. Erlangen Graduate School in Advanced Optical Technologies (SAOT), Paul-Gordan-Straße 6, 91052 Erlangen, Germany.

3. Physical Chemistry II and Interdisciplinary Center for Molecular Materials, Department of Chemistry and Pharmacy, FAU Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany.

4. Organic Materials and Devices (OMD) Group, Institute of Polymer Materials, FAU Erlangen-Nürnberg, Martensstraße 7, 91058 Erlangen, Germany.

5. Clarendon Laboratory University of Oxford, Parks Road, Oxford OX1 3PU, UK.

6. Chair for Surface Science and Corrosion (LKO), Department of Materials Science and Engineering, FAU Erlangen-Nürnberg, Martensstraße 7, 91058 Erlangen, Germany.

7. Institute of Micro- and Nanostructure Research and Center for Nanoanalysis and Electron Microscopy (CENEM), Department of Materials Science and Engineering, FAU Erlangen-Nürnberg, Cauerstraße 6, 91058 Erlangen, Germany.

8. Avantama, Laubisruetistraße 50, 8712 Staefa, Switzerland.

9. Department of Chemistry and Pharmacy, FAU Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany.

10. Bavarian Center for Applied Energy Research (ZAE Bayern), Immerwahrstraße 2, 91058 Erlangen, Germany.

Abstract

Minimizing losses at interfaces Among the issues facing the practical use of hybrid organohalide lead perovskite solar cells is the loss of charge carriers at interfaces. Hou et al. show that tantalum-doped tungsten oxide forms almost ohmic contacts with inexpensive conjugated polymer multilayers to create a hole-transporting material with a small interface barrier. This approach eliminates the use of ionic dopants that compromise device stability. Solar cells made with these contacts achieved maximum efficiencies of 21.2% and operated stably for more than 1000 hours. Science , this issue p. 1192

Funder

European Research Council

Deutsche Forschungsgemeinschaft

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference32 articles.

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