Electron accumulation across the perovskite layer enhances tandem solar cells with textured silicon
Reducing charge carrier transport losses, improving selectivity, and minimizing nonradiative recombination are essential for enhancing the efficiency and stability of perovskite/silicon tandem solar cells. We used a hybrid two-step perovskite deposition method that is compatible with industry-standard textured silicon, incorporating a perovskite surface treatment based on 1,3-diaminopropane dihydroiodide. The interaction of this molecule with the perovskite surface increased the majority charge carrier concentration at the electron-selective contact, which reduced interfacial recombination. Simultaneously, this field-effect passivation increased the electron concentration across the entire intrinsic perovskite absorber, which increased conductivity and reduced transport losses. Combined, this yields high-performance, fully textured perovskite/silicon tandem solar cells, achieving a 1-sun AM1.5G conversion efficiency of 33.1% with an open-circuit voltage of 2.01 volts and an extended outdoor stability in the Red Sea Coast.
Authors
- Martin C. Schubert (ORCID: https://orcid.org/0000-0002-2147-6951)
- Mathias List (ORCID: https://orcid.org/0000-0001-8273-3918)
- Stefan W. Glunz (ORCID: https://orcid.org/0000-0002-9877-2097)
- Udo Schwingenschlögl (ORCID: https://orcid.org/0000-0003-4179-7231)
- Ahmed Ali Said (ORCID: https://orcid.org/0000-0001-6527-6671)
- Juliane Borchert (ORCID: https://orcid.org/0000-0001-7973-6907)
- Vladyslav Hnapovskyi (ORCID: https://orcid.org/0000-0003-0109-7871)
- Jonas Schön (ORCID: https://orcid.org/0000-0001-6031-0500)
- Erkan Aydın (ORCID: https://orcid.org/0000-0002-8849-2788)
- Rakesh R. Pradhan (ORCID: https://orcid.org/0000-0003-3130-2565)
- Jared Faißt
- Esma Ugur (ORCID: https://orcid.org/0000-0003-0070-334X)
- Oussama Er‐raji (ORCID: https://orcid.org/0000-0003-2128-9467)
- Patricia S. C. Schulze (ORCID: https://orcid.org/0000-0002-1924-6153)
- Sofiia Kosar (ORCID: https://orcid.org/0000-0001-7599-5979)
- Adi Prasetio (ORCID: https://orcid.org/0000-0003-4708-2325)
- Florian Schindler (ORCID: https://orcid.org/0000-0001-7639-2758)
- Martin Bivour (ORCID: https://orcid.org/0009-0008-0980-8774)
- Yashika Gupta (ORCID: https://orcid.org/0000-0002-7956-759X)
- Anil Reddy Pininti (ORCID: https://orcid.org/0000-0003-3282-4947)
- José P. Jurado (ORCID: https://orcid.org/0000-0001-7639-5959)
- Christoph Messmer (ORCID: https://orcid.org/0000-0003-0363-8109)
- Shynggys Zhumagali (ORCID: https://orcid.org/0000-0002-6707-1335)
- Clemens Baretzky (ORCID: https://orcid.org/0000-0002-2457-0978)
- Stefaan De Wolf (ORCID: https://orcid.org/0000-0003-1619-9061)
- Frédéric Laquai (ORCID: https://orcid.org/0000-0002-5887-6158)
- Christopher E. Petoukhoff (ORCID: https://orcid.org/0000-0001-6786-8830)
- Randi Azmi (ORCID: https://orcid.org/0000-0002-8518-9388)
- Hannu P. Pasanen (ORCID: https://orcid.org/0000-0002-7237-2677)
- Oleksandr Matiash
- Oliver Fischer (ORCID: https://orcid.org/0009-0006-9544-4246)
- Badri Vishal (ORCID: https://orcid.org/0000-0002-3480-6841)
- Marco Marengo (ORCID: https://orcid.org/0000-0002-3937-2851)
Institutions
- University of Freiburg (DE)
- Fraunhofer Institute for Solar Energy Systems (DE)
- King Abdullah University of Science and Technology (SA)
Publication Details
- Journal
- Science
- Published
- 2025-09-04
- DOI
- https://doi.org/10.1126/science.adx1745
- Citations
- 25
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 18.26