Presentation Details
| The Ideal Quench? Gas-Quenching Timing and Wet Film Evolution in Slot-Die Coated Perovskites Alexander Tarasov1, Lennart Reb1, Nasim Rezaei-Hartmann2, Adrian Adrian2, Anton Dzong1, Enno Malguth2, Claudine Groß2, Madeleine Justianto2, Florian Mathies1, Eva Unger1, Christian Camus2. 1Helmholtz-Centre Berlin for Materials and Energy GmbH, Berlin, Germany.2LayTec AG, Berlin, Germany |
Abstract
Slot-die coating enables scalable manufacturing of perovskite thin films, yet process reproducibility is limited by insufficient in-line feedback during drying and gas quenching. Here, in-line spectral reflectance and photoluminescence metrologies are integrated into a slot-die coating process to monitor wet film thinning, solvent evaporation, and crystallization in real time. Systematic variation of gas-quenching delay reveals a strong impact on thinning rates and final dry film thickness. A rapid thickness collapse upon quenching is observed, while photoluminescence emerges only after near-complete solvent removal. Correlation with ex-situ profilometry confirms the predictive capability of the in-line approach, demonstrating its relevance for scalable perovskite manufacturing and future closed-loop process control.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.
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