{
  "abstract": "The unique properties of transition metal dichalcogenides provide a versatile platform for scalable, room-temperature quantum devices. Their future commercialization will inevitably depend on the development of heterostructures facilitating charge injection into pre-defined areas of 2D components. We showcase here an innovative approach to accurately characterize electrically active nanoscale regions in multidimensional heterostructures made of WSe₂ layers and GaAs, thin films and in-plane one-dimensional nanostructures. The rectifying behavior of these stacks is visualized through electron-beam induced current mapping with unprecedented spatial resolution. These electrical measurements reveal local diffusive and drift charge flows through the diode. Notably, we observe a significant reduction in the effective carrier concentration in WSe2 layers thinner than 15 nm. 2D/1D ensembles exhibit in-plane confinement of the space charge region as narrow as 140 nm. This level of control over dimensionality, position, and size opens exciting avenues to achieve tunable quantum sources, one step closer to 2D-based quantum devices.",
  "abstract_shown": true,
  "affiliations": [
    "Laboratory of Semiconductor Materials, Institute of Materials, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland",
    "Epitaxy Core Facility, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland",
    "Laboratory of Quantum Physics, Topology and Correlations, Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland",
    "Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Michele Zendrini",
      "orcid": "0000-0001-5350-1341"
    },
    {
      "affs": [
        0
      ],
      "name": "Claire Blaga"
    },
    {
      "affs": [
        0
      ],
      "name": "Matilde Cantele"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Kamil Artur Wodzislawski"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Alok Rudra"
    },
    {
      "affs": [
        2
      ],
      "name": "Mitali Banerjee",
      "orcid": "0009-0009-5690-5822"
    },
    {
      "affs": [
        0,
        3
      ],
      "name": "Anna Fontcuberta i Morral",
      "orcid": "0000-0002-5070-2196"
    },
    {
      "affs": [
        0
      ],
      "name": "Valerio Piazza",
      "orcid": "0000-0001-6630-5809"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6skp68850h6k4.bib",
  "cited_by": 0,
  "doi": "10.1038/s43246-026-01234-6",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13727687/",
  "id": "6skp68850h6k4",
  "issns": [
    "2662-4443"
  ],
  "landing_url": "https://doi.org/10.1038/s43246-026-01234-6",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Article"
    ],
    [
      "openalex",
      "2505|2D Materials and Applications"
    ]
  ],
  "openalex": "W7164682114",
  "pdf_url": "https://www.nature.com/articles/s43246-026-01234-6_reference.pdf",
  "pmcid": "PMC13727687",
  "pmid": "42978879",
  "published": "2026-06-13",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6skp68850h6k4.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T12:23:31Z",
      "native_id": "PMC13727687",
      "source": "pmc",
      "url": "https://doi.org/10.1038/s43246-026-01234-6"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|2D Materials and Applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Visualizing nanoscale charge flows in multi-dimensional WSe2/GaAs vertical diodes",
  "title_text": "Visualizing nanoscale charge flows in multi-dimensional WSe2/GaAs vertical diodes",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T12:20:50Z",
  "url": "https://research.draconitic.com/paper/6skp68850h6k4",
  "venue": "Communications Materials",
  "versions": []
}