Rapid scalable fabrication of roll-to-roll slot-die coated flexible perovskite solar cells using intense pulse light annealing

Perovskite solar cells have achieved high efficiencies at the lab scale using batch processes that often may not be scalable. Processes that can be integrated into a continuous manufacturing platform, such as roll-to-roll, where several processes can be carried out sequentially are necessary to deve...

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Bibliographic Details
Published in:Sustainable energy & fuels 2022-10, Vol.6 (23)
Main Authors: Chandrasekhar, P. S., Chapagain, Sashil, Blake, Martin, Armstrong, Peter J., Grapperhaus, Craig, Druffel, Thad L.
Format: Article
Language:English
Subjects:
Intense Pulse Light
perovskite
perovskite solar cells
roll-to-roll
slot-die coating
SOLAR ENERGY
tin oxide
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Summary:Perovskite solar cells have achieved high efficiencies at the lab scale using batch processes that often may not be scalable. Processes that can be integrated into a continuous manufacturing platform, such as roll-to-roll, where several processes can be carried out sequentially are necessary to develop a new cost-competitive solar technology. In this work, intense pulsed light thermal post-processing is coupled with scalable slot-die coating and air knife evaporation in a high-speed roll-to-roll process of up to 2 m min–1. The optimization of IPL energy parameters, web speeds, solution flow rates, and concentration of precursor inks yielded a champion power conversion efficiency of 11.24% for a 1 cm2 roll-to-roll coated device. The overall processing time for a single layer in this process is reduced from minutes to seconds and the overall footprint of the manufacturing process is decreased. Furthermore, this demonstrates the promising capabilities for intensed pulsed light to reduce manufacturing costs and paves a roadmap for scalable and efficient PSCs on a roll-to-roll platform.
ISSN:2398-4902
2398-4902