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. 2023 Aug 1;14:4604. doi: 10.1038/s41467-023-40288-9

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© The Author(s) 2023

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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — a) the PL spectra as a function of the filling factor at the zero electric field. b PL peak energy and c integrated PL intensity, extracted from (a), plotted as a function of the filling factor. d–g are doping-dependent PL spectra at several external electric fields increasing in the negative direction. d, e are in the quadrupolar exciton regime, while f, g are transitioned to the dipolar exciton regime. The dotted white lines in the color plots are the extracted PL peak energies through fitting (details in Supplementary Information Section 8). The PL data were taken from device D1.