A general approach to high-efficiency perovskite solar cells by any antisolvent

Alexander D. Taylor, Qing Sun, Katelyn P. Goetz, Qingzhi An, Tim Schramm, Yvonne Hofstetter, Maximillian Litterst, Fabian Paulus and Yana Vaynzof ()
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Alexander D. Taylor: Ruprecht-Karls-Universität Heidelberg
Qing Sun: Ruprecht-Karls-Universität Heidelberg
Katelyn P. Goetz: Ruprecht-Karls-Universität Heidelberg
Qingzhi An: Ruprecht-Karls-Universität Heidelberg
Tim Schramm: Technische Universität Dresden
Yvonne Hofstetter: Ruprecht-Karls-Universität Heidelberg
Maximillian Litterst: Ruprecht-Karls-Universität Heidelberg
Fabian Paulus: Ruprecht-Karls-Universität Heidelberg
Yana Vaynzof: Ruprecht-Karls-Universität Heidelberg

Nature Communications, 2021, vol. 12, issue 1, 1-11

Abstract: Abstract Deposition of perovskite films by antisolvent engineering is a highly common method employed in perovskite photovoltaics research. Herein, we report on a general method that allows for the fabrication of highly efficient perovskite solar cells by any antisolvent via manipulation of the antisolvent application rate. Through detailed structural, compositional, and microstructural characterization of perovskite layers fabricated by 14 different antisolvents, we identify two key factors that influence the quality of the perovskite layer: the solubility of the organic precursors in the antisolvent and its miscibility with the host solvent(s) of the perovskite precursor solution, which combine to produce rate-dependent behavior during the antisolvent application step. Leveraging this, we produce devices with power conversion efficiencies (PCEs) that exceed 21% using a wide range of antisolvents. Moreover, we demonstrate that employing the optimal antisolvent application procedure allows for highly efficient solar cells to be fabricated from a broad range of precursor stoichiometries.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-22049-8

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DOI: 10.1038/s41467-021-22049-8

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