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Quantifying Infiltration for Quality Control in Printed Mesoscopic Perovskite Solar Cells: A Microscopic Perspective

Carys Worsley, Tom O. Dunlop Orcid Logo, Sarah-Jane Potts Orcid Logo, Rodrigo Garcia Rodriguez, Becky Bolton, Matthew Davies Orcid Logo, Eifion Jewell Orcid Logo, Trystan Watson Orcid Logo

ACS Applied Energy Materials, Volume: 7, Issue: 5, Pages: 1938 - 1948

Swansea University Authors: Carys Worsley, Tom O. Dunlop Orcid Logo, Sarah-Jane Potts Orcid Logo, Rodrigo Garcia Rodriguez, Becky Bolton, Matthew Davies Orcid Logo, Eifion Jewell Orcid Logo, Trystan Watson Orcid Logo

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DOI (Published version): 10.1021/acsaem.3c03056

Abstract

Mesoscopic carbon-based perovskite solar cells (CPSCs) are often cited as a potential frontrunner to perovskite commercialization. Infiltration, the extent to which perovskite fills the mesoporous scaffold, is critical for optimum performance and stability. However, infiltration data are usually pre...

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Published in: ACS Applied Energy Materials
ISSN: 2574-0962 2574-0962
Published: American Chemical Society (ACS) 2024
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa66062
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Abstract: Mesoscopic carbon-based perovskite solar cells (CPSCs) are often cited as a potential frontrunner to perovskite commercialization. Infiltration, the extent to which perovskite fills the mesoporous scaffold, is critical for optimum performance and stability. However, infiltration data are usually presented as qualitative photographic comparisons of samples with extreme infiltration variation. This work examines how small infiltration defects impact performance using an optical microscopy examination of the base TiO2 layer to identify issues and develop targeted techniques for infiltration enhancement. Critically, the uninfiltrated area at the base of the stack was found to correlate well with PCE across multiple batches of varied print quality and ZrO2 thickness. Through reduction of mesh mark defects and improvement of print quality in the ZrO2 and carbon layers, a champion PCE of 15.01% is attained. It follows that this facile, multiscaled, nondestructive technique could enable targeted performance enhancement and quality control in future scale-up initiatives.
Keywords: Mesoscopic, perovskite, carbon, scale-up, quality control, infiltration
College: Faculty of Science and Engineering
Funders: Royal Society, Newton Fund Impact Scheme, EPSRC Programme Grant ATIP (Application Targeted and Integrated Photovoltaics), SPECIFIC Innovation and Knowledge Centre, Innovate UK, European Regional Development Fund, Prosperity partnership. ICA\R1\191321, 541128962, EP/T028513/1, EP/N020863/1), 920036, c80892, EP/X025217/1, (EP/S001336/1)
Issue: 5
Start Page: 1938
End Page: 1948