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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. 1 — a Schematics of the device structure with three different regions: (I) WS₂/b-WSe₂ (II) t-WSe₂/WS₂/b-WSe₂ (III) top bilayer, t-WSe₂/WS₂. b Schematics of the dipolar and quadrupolar excitons configuration. c Type-II alignment of the angle-aligned WSe₂/WS₂ heterobilayer. d Valence band hybridization in the trilayer region, compared with the flat valence band of WSe₂ in the WSe₂/WS₂ moiré bilayer regions. e–g are doping-dependent PL spectra for regions I, II, and III. The PL data were taken from device D5.