Multication perovskite 2D/3D interfaces form via progressive dimensional reduction

Andrew H. Proppe, Andrew Johnston, Sam Teale, Arup Mahata, Rafael Quintero-Bermudez, Eui Hyuk Jung, Luke Grater, Teng Cui, Tobin Filleter, Chang-Yong Kim, Shana O. Kelley, Filippo Angelis and Edward H. Sargent ()
Additional contact information
Andrew H. Proppe: University of Toronto
Andrew Johnston: University of Toronto
Sam Teale: University of Toronto
Arup Mahata: D3-Computation, Istituto Italiano di Tecnologia
Rafael Quintero-Bermudez: University of Toronto
Eui Hyuk Jung: University of Toronto
Luke Grater: University of Toronto
Teng Cui: Department of Mechanical and Industrial Engineering
Tobin Filleter: Department of Mechanical and Industrial Engineering
Chang-Yong Kim: Canadian Light Source
Shana O. Kelley: University of Toronto
Filippo Angelis: D3-Computation, Istituto Italiano di Tecnologia
Edward H. Sargent: University of Toronto

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract Many of the best-performing perovskite photovoltaic devices make use of 2D/3D interfaces, which improve efficiency and stability – but it remains unclear how the conversion of 3D-to-2D perovskite occurs and how these interfaces are assembled. Here, we use in situ Grazing-Incidence Wide-Angle X-Ray Scattering to resolve 2D/3D interface formation during spin-coating. We observe progressive dimensional reduction from 3D to n = 3 → 2 → 1 when we expose (MAPbBr3)0.05(FAPbI3)0.95 perovskites to vinylbenzylammonium ligand cations. Density functional theory simulations suggest ligands incorporate sequentially into the 3D lattice, driven by phenyl ring stacking, progressively bisecting the 3D perovskite into lower-dimensional fragments to form stable interfaces. Slowing the 2D/3D transformation with higher concentrations of antisolvent yields thinner 2D layers formed conformally onto 3D grains, improving carrier extraction and device efficiency (20% 3D-only, 22% 2D/3D). Controlling this progressive dimensional reduction has potential to further improve the performance of 2D/3D perovskite photovoltaics.

Date: 2021
References: Add references at CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.nature.com/articles/s41467-021-23616-9 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23616-9

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-021-23616-9

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().