Simplifying perovskite solar cell fabrication for materials testing: how to use unetched substrates with the aid of a three-dimensionally printed cell holder
: Valdez García, Joaquín; Hadadian, Mahboubeh; Nizamov, Rustem; Mäkinen, Paavo; Lamminen, Noora; Vivo, Paola; Miettunen, Kati
Publisher: Royal Society Publishing
: 2024
: Royal Society Open Science
: Royal Society Open Science
: 241012
: 11
: 9
: 2054-5703
DOI: https://doi.org/10.1098/rsos.241012
: https://doi.org/10.1098/rsos.241012
: https://research.utu.fi/converis/portal/detail/Publication/458423899
This work demonstrates that unetched substrates can be reliably used in perovskite solar cell (PSC) fabrication. Chemical etching and laser patterning of the bottom electrodes are time- and resource-consuming processes. In particular, when testing novel conductive substrate materials, such as metallic or bio-based substrates, etching or patterning could be entirely unfeasible or could require significant process optimization. Avoiding these steps could accelerate research on PSCs, yet the literature shows no attempts to override these steps. Here, PSCs were fabricated and characterized using three-dimensionally printed holders with spring-loaded pins. We show that devices made on unetched substrates have, on average, a similar performance to those made on etched substrates (16 ± 1% and 16.0 ± 0.7%, respectively). Our study provides a new strategy for fabricating PSCs, particularly when etching and laser patterning are impractical.
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J.V.G. thanks the Finnish Cultural Foundation. M.H. thanks SUSMAT profiling funding (Research Council of Finland and University of Turku). J.V.G., R.N. and K.M. thank the Research Council of Finland: Project BioEST (346015 and 336577). P.V. and P.M. thank the Research Council of Finland, Decision No. 347772. This work was part of the Research Council of Finland Flagship Programme, Photonics Research, and Innovation (PREIN), Decision No. 320165. N.L. thanks the Emil Aaltonen Foundation. The authors thank Mikael Nyberg/University of Turku for photographing our samples. This study utilized University of Turku’s strategic infrastructure (MARI).
