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. 2021 Aug 10;12:4815. doi: 10.1038/s41467-021-25148-8

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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. 6 — a Schematic illustration of spin coating and blade coating for G-BHJ fabrication procedure. b J–V curves of the BHJ OSCs and G-BHJ OSCs. c EQE curves of the optimized BHJ OSCs and G-BHJ OSCs. d Histograms of the BHJ OSCs and G-BHJ OSCs based on 20 independent cells. Time-resolved UV-vis absorption spectra of e optimized BHJ and f G-BHJ OSCs films. g Aggregation rate of PM6 and BTP-eC9 in optimized BHJ and G-BHJ active layers. The peak position and peak intensity evolution as a function of annealing time of PM6 and BTP-eC9 in h optimized BHJ and i G-BHJ films.