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Tockhorn P, Sutter J, Cruz A, Wagner P, Jäger K, Yoo D, Lang F, Grischek M, Li B, Li J, Shargaieva O, Unger E, Al-Ashouri A, Köhnen E, Stolterfoht M, Neher D, Schlatmann R, Rech B, Stannowski B, Albrecht S, Becker C. Nano-optical designs for high-efficiency monolithic perovskite-silicon tandem solar cells. NATURE NANOTECHNOLOGY 2022; 17:1214-1221. [PMID: 36280763 PMCID: PMC9646483 DOI: 10.1038/s41565-022-01228-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 09/05/2022] [Indexed: 05/02/2023]
Abstract
Perovskite-silicon tandem solar cells offer the possibility of overcoming the power conversion efficiency limit of conventional silicon solar cells. Various textured tandem devices have been presented aiming at improved optical performance, but optimizing film growth on surface-textured wafers remains challenging. Here we present perovskite-silicon tandem solar cells with periodic nanotextures that offer various advantages without compromising the material quality of solution-processed perovskite layers. We show a reduction in reflection losses in comparison to planar tandems, with the new devices being less sensitive to deviations from optimum layer thicknesses. The nanotextures also enable a greatly increased fabrication yield from 50% to 95%. Moreover, the open-circuit voltage is improved by 15 mV due to the enhanced optoelectronic properties of the perovskite top cell. Our optically advanced rear reflector with a dielectric buffer layer results in reduced parasitic absorption at near-infrared wavelengths. As a result, we demonstrate a certified power conversion efficiency of 29.80%.
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Affiliation(s)
- Philipp Tockhorn
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
| | - Johannes Sutter
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
| | - Alexandros Cruz
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
| | - Philipp Wagner
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
| | - Klaus Jäger
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
- Computational Nanooptics Group, Zuse Institute Berlin, Berlin, Germany
| | - Danbi Yoo
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
| | - Felix Lang
- Soft Matter Physics, Universität Potsdam, Potsdam, Germany
| | - Max Grischek
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
- Soft Matter Physics, Universität Potsdam, Potsdam, Germany
| | - Bor Li
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
| | - Jinzhao Li
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
| | - Oleksandra Shargaieva
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
| | - Eva Unger
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
- Department of Chemistry, Humboldt Universität zu Berlin, Berlin, Germany
| | - Amran Al-Ashouri
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
| | - Eike Köhnen
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
| | | | - Dieter Neher
- Soft Matter Physics, Universität Potsdam, Potsdam, Germany
| | - Rutger Schlatmann
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
- Faculty 1: School of Engineering - Energy and Information, Hochschule für Technik und Wirtschaft Berlin, Berlin, Germany
| | - Bernd Rech
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
- Faculty of Electrical Engineering and Computer Science, Technische Universität Berlin, Berlin, Germany
| | - Bernd Stannowski
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
- Berliner Hochschule für Technik, Berlin, Germany
| | - Steve Albrecht
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany.
- Faculty of Electrical Engineering and Computer Science, Technische Universität Berlin, Berlin, Germany.
| | - Christiane Becker
- Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany.
- Faculty 1: School of Engineering - Energy and Information, Hochschule für Technik und Wirtschaft Berlin, Berlin, Germany.
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