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Green solvent engineering for enhanced performance and reproducibility in printed carbon-based mesoscopic perovskite solar cells and modules
Materials Advances, Volume: 3, Issue: 2, Pages: 1125 - 1138
Swansea University Authors: Carys Worsley, Dimitrios Raptis, Simone Meroni , Rahul Patidar, Adam Pockett, Tom Dunlop , Sarah-Jane Potts , Becky Bolton, Cecile Charbonneau , Matt Carnie , Eifion Jewell , Trystan Watson
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Mesoscopic carbon-based perovskite solar cells (CPSCs) are frequently described as a potential frontrunner for PSC commercialization. Previous work has introduced γ-valerolactone (GVL) as a sustainable, non-toxic, green alternative to GBL for CPSC perovskite precursors. In this work, methanol (MeOH)...
|Published in:||Materials Advances|
Royal Society of Chemistry (RSC)
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Mesoscopic carbon-based perovskite solar cells (CPSCs) are frequently described as a potential frontrunner for PSC commercialization. Previous work has introduced γ-valerolactone (GVL) as a sustainable, non-toxic, green alternative to GBL for CPSC perovskite precursors. In this work, methanol (MeOH) solvent additives are applied to enhance the performance and reproducibility of GVL-based precursors, through improving electrode wetting, infiltration, and perovskite crystal quality. Precursors incorporating 10% MeOH are found to substantially enhance reproducibility and performance, achieving a champion PCE of 13.82% in a 1 cm2 device and >9% in a 220 cm2 module fabricated in ambient conditions. Stability is also improved, with an unencapsulated MeOH device exhibiting a T80 of >420 hours at 50 °C in ambient humidity under continuous AM1.5 illumination. This work established GVL-based precursors as commercially attractive and provides an example of how green solvent engineering can be applied in the development, amelioration and scale-up of novel photovoltaics.
Faculty of Science and Engineering
This work was made possible by support from the UKRI Global Challenge Research Fund project SUNRISE (EP/P032591/1) and through the funding of the SPECIFIC Innovation and Knowledge Centre by the Engineering and Physical Science Research Council [EP/N020863/1], Innovate UK , Newton fund, Royal Society and the European Regional Development Fund [c80892] through the Welsh Government.This work was also made possible by the support of a Royal Society International Collaboration award (ICA\R1\191321) and the Newton Fund Impact Scheme
(541128962). AP and MC would like to thank the Welsh European Funding Office (SPARC II), EPSRC (EP/S017925/1, EP/R032750/1).