Presentation Details
| Accurate Performance and Reliability Testing of Perovskite PV from Lab to Fab Peter Pasmans1, Jake Veloza1, Stefan Roest1, Lukas Ziegler2, Bernhard Mitchell2. 1Eternal Sun B.V., The Hague, Netherlands.2WAVELABS Eternal Sun GmbH, Leipzig, Germany |
Abstract
Perovskite PV devices are rapidly maturing from laboratory-scale research to gigawatt-level manufacturing and initial field deployments. While power conversion efficiencies in R&D are achieving impressive results - exceeding 26% for single-junction and 34% for perovskite-silicon tandems – successful commercialization depends on overcoming key challenges, including: 1) demonstrating long-term reliability, and 2) accurately measuring the (stabilized) module power. Over a 25-year operational lifetime, a solar module typically receives between 40,000 and 60,000 kWh/m² of solar energy, with operating temperatures ranging between 55 to 75°C, depending on the location. Therefore, demonstrating the long-term stability of perovskite modules under combined light and elevated temperatures indoors, and correlating these indoor results with outdoor field data, is critical for predicting real-world reliability. Accurately measuring the stable power of perovskite devices is complicated by their inherent hysteresis and metastability. Consequently, industry standards are evolving toward measurement protocols including MPP tracking or asymptotic IV sweeps, which require stabilization times far exceeding typical production cycle times. Tandem devices add further complexity, demanding precise spectral matching of the light source to ensure balanced currents in the top and bottom cells. This work explores strategies to accelerate the reliability and performance assessment of perovskite (tandem) devices. We review measurement challenges in depth, evaluate emerging measurement protocols, and discuss solutions to accurately characterize reliability and performance from the lab to the production line. By addressing these challenges, we aim to facilitate the rapid development and commercialization of high-performance, reliable perovskite solar modules.
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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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