Interface engineering for high-performance, triple-halide perovskite-silicon tandem solar cells

• 成果类型: Article
• 署名作者: Mariotti, Silvia; Koehnen, Eike; Scheler, Florian; Sveinbjoernsson, Kari; Zimmermann, Lea; Piot, Manuel; Yang, Fengjiu; Li, Bor; Warby, Jonathan; Musiienko, Artem; Menzel, Dorothee; Lang, Felix; Kessler, Sebastian; Levine, Igal; Mantione, Daniele; Al-Ashouri, Amran; Haertel, Marlene S.; Xu, Ke; Cruz, Alexandros; Kurpiers, Jona; Wagner, Philipp; Koebler, Hans; Li, Jinzhao; Magomedov, Artiom; Mecerreyes, David; Unger, Eva; Abate, Antonio; Stolterfoht, Martin; Stannowski, Bernd; Schlatmann, Rutger; Korte, Lars; Albrecht, Steve
• 署名单位: Helmholtz Association; Helmholtz-Zentrum fuer Materialien und Energie GmbH (HZB); Swiss Federal Institutes of Technology Domain; Ecole Polytechnique Federale de Lausanne; University of Potsdam; University of Basque Country; POLYMAT; Basque Foundation for Science; Kaunas University of Technology; Technical University of Berlin; Okinawa Institute of Science & Technology Graduate University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-8219
• DOI: 10.1126/science.adf5872
• 发表日期: 2023-07-07
• 页码: 63-69
• 关键词: Efficiency; photovoltaics

摘要

Improved stability and efficiency of two-terminal monolithic perovskite-silicon tandem solar cells will require reductions in recombination losses. By combining a triple-halide perovskite (1.68 electron volt bandgap) with a piperazinium iodide interfacial modification, we improved the band alignment, reduced nonradiative recombination losses, and enhanced charge extraction at the electron-selective contact. Solar cells showed open-circuit voltages of up to 1.28 volts in p-i-n single junctions and 2.00 volts in perovskite-silicon tandem solar cells. The tandem cells achieve certified power conversion efficiencies of up to 32.5%.