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22 August 2020 Micron-thick perovskite solar cells with all-inkjet-printed absorber and extraction layers
Fabian Schackmar, Helge Eggers, Tobias Abzieher, Markus Frericks, Qing Sun, Yana Vaynzof, Bryce S. Richards, Uli Lemmer, Gerardo Hernandez-Sosa, Ulrich W. Paetzold
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Proceedings Volume 11474, Organic, Hybrid, and Perovskite Photovoltaics XXI; 114740S (2020) https://doi.org/10.1117/12.2567895
Event: SPIE Organic Photonics + Electronics, 2020, Online Only
Abstract
Spin-coated perovskite solar cells (PSC) have demonstrated an exceptional increase in power conversion efficiencies (PCEs) on small-area devices. Scaling-up this technology requires developing a scalable solution processing techniques like digital inkjet printing that additionally offers maskless free-form depositing. Here, we demonstrate a processing route for an inkjet-printed (IJP) triple cation PSC, which can surpass the 20% PCE limit by optimizing a vacuum crystallization technique that enables absorber layers thicker than 1 micron with a grain boundary-free columnar crystal structure. Further, we replace the vacuum-deposited charge-transport layers with IJP pendants to achieve a PSC layer stack consisting of only IJP functional layers.
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Fabian Schackmar, Helge Eggers, Tobias Abzieher, Markus Frericks, Qing Sun, Yana Vaynzof, Bryce S. Richards, Uli Lemmer, Gerardo Hernandez-Sosa, and Ulrich W. Paetzold "Micron-thick perovskite solar cells with all-inkjet-printed absorber and extraction layers", Proc. SPIE 11474, Organic, Hybrid, and Perovskite Photovoltaics XXI, 114740S (22 August 2020); https://doi.org/10.1117/12.2567895
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KEYWORDS
Perovskite
Solar cells
Crystals
Optoelectronics
X-ray diffraction
Diffusion
Inkjet technology
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