Nature Communications (Oct 2024)
Vertically oriented low-dimensional perovskites for high-efficiency wide band gap perovskite solar cells
- Andrea Zanetta,
- Valentina Larini,
- Vikram,
- Francesco Toniolo,
- Badri Vishal,
- Karim A. Elmestekawy,
- Jiaxing Du,
- Alice Scardina,
- Fabiola Faini,
- Giovanni Pica,
- Valentina Pirota,
- Matteo Pitaro,
- Sergio Marras,
- Changzeng Ding,
- Bumin K. Yildirim,
- Maxime Babics,
- Esma Ugur,
- Erkan Aydin,
- Chang-Qi Ma,
- Filippo Doria,
- Maria Antonietta Loi,
- Michele De Bastiani,
- Laura M. Herz,
- Giuseppe Portale,
- Stefaan De Wolf,
- M. Saiful Islam,
- Giulia Grancini
Affiliations
- Andrea Zanetta
- Università Degli Studi Di Pavia - Pavia (Italy), Department of Chemistry & INSTM, Via T. Taramelli 14
- Valentina Larini
- Università Degli Studi Di Pavia - Pavia (Italy), Department of Chemistry & INSTM, Via T. Taramelli 14
- Vikram
- Department of Materials, University of Oxford
- Francesco Toniolo
- Università Degli Studi Di Pavia - Pavia (Italy), Department of Chemistry & INSTM, Via T. Taramelli 14
- Badri Vishal
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE)
- Karim A. Elmestekawy
- Department of Physics, University of Oxford, Clarendon Laboratory
- Jiaxing Du
- Department of Physics, University of Oxford, Clarendon Laboratory
- Alice Scardina
- Università Degli Studi Di Pavia - Pavia (Italy), Department of Chemistry & INSTM, Via T. Taramelli 14
- Fabiola Faini
- Università Degli Studi Di Pavia - Pavia (Italy), Department of Chemistry & INSTM, Via T. Taramelli 14
- Giovanni Pica
- Università Degli Studi Di Pavia - Pavia (Italy), Department of Chemistry & INSTM, Via T. Taramelli 14
- Valentina Pirota
- Università Degli Studi Di Pavia - Pavia (Italy), Department of Chemistry & INSTM, Via T. Taramelli 14
- Matteo Pitaro
- Zernike Institute for Advanced Materials, University of Groningen, University of Groningen Nijenborgh 3 (Feringa Building)
- Sergio Marras
- Center for Convergent Technologies, Istituto Italiano di Tecnologia, Via Morego 30
- Changzeng Ding
- i-Lab & Printable Electronics Research Center, Suzhou Institute of Nano-Tec and Nano-Bionics, Chinese Academy of Sciences (CAS), 398 Ruoshui Road, SEID, SIP
- Bumin K. Yildirim
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE)
- Maxime Babics
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE)
- Esma Ugur
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE)
- Erkan Aydin
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE)
- Chang-Qi Ma
- i-Lab & Printable Electronics Research Center, Suzhou Institute of Nano-Tec and Nano-Bionics, Chinese Academy of Sciences (CAS), 398 Ruoshui Road, SEID, SIP
- Filippo Doria
- Università Degli Studi Di Pavia - Pavia (Italy), Department of Chemistry & INSTM, Via T. Taramelli 14
- Maria Antonietta Loi
- Zernike Institute for Advanced Materials, University of Groningen, University of Groningen Nijenborgh 3 (Feringa Building)
- Michele De Bastiani
- Università Degli Studi Di Pavia - Pavia (Italy), Department of Chemistry & INSTM, Via T. Taramelli 14
- Laura M. Herz
- Department of Physics, University of Oxford, Clarendon Laboratory
- Giuseppe Portale
- Zernike Institute for Advanced Materials, University of Groningen, University of Groningen Nijenborgh 3 (Feringa Building)
- Stefaan De Wolf
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE)
- M. Saiful Islam
- Department of Materials, University of Oxford
- Giulia Grancini
- Università Degli Studi Di Pavia - Pavia (Italy), Department of Chemistry & INSTM, Via T. Taramelli 14
- DOI
- https://doi.org/10.1038/s41467-024-53339-6
- Journal volume & issue
-
Vol. 15,
no. 1
pp. 1 – 10
Abstract
Abstract Controlling crystal growth alignment in low-dimensional perovskites (LDPs) for solar cells has been a persistent challenge, especially for low-n LDPs (n 1.7 eV) impeding charge flow. Here we overcome such transport limits by inducing vertical crystal growth through the addition of chlorine to the precursor solution. In contrast to 3D halide perovskites (APbX3), we find that Cl substitutes I in the equatorial position of the unit cell, inducing a vertical strain in the perovskite octahedra, and is critical for initiating vertical growth. Atomistic modelling demonstrates the thermodynamic stability and miscibility of Cl/I structures indicating the preferential arrangement for Cl-incorporation at I-sites. Vertical alignment persists at the solar cell level, giving rise to a record 9.4% power conversion efficiency with a 1.4 V open circuit voltage, the highest reported for a 2 eV wide band gap device. This study demonstrates an atomic-level understanding of crystal tunability in low-n LDPs and unlocks new device possibilities for smart solar facades and indoor energy generation.
