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. 2021 Jul 23;12:4510. doi: 10.1038/s41467-021-24761-x

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — The temporal evolution of the luminance and the voltage for LECs fabricated from inks based on chlorobenzene (solid red circles), ethoxybenzene (open blue squares) and anisole (open green diamonds). a The performance of LECs fabricated by spin coating “fresh” inks (prepared the same day). b The performance of LECs fabricated by spin coating “old” inks, which had been stored for 30 days following ink preparation. c The performance of LEC fabricated by scalable bar coating. All devices were driven by a constant current density of j = 77 A m⁻².