{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T16:09:23Z","timestamp":1790006963794,"version":"4.0.1"},"reference-count":56,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["461605777"],"award-info":[{"award-number":["461605777"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["233512597"],"award-info":[{"award-number":["233512597"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["324659309"],"award-info":[{"award-number":["324659309"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","award":["CREATE 565360"],"award-info":[{"award-number":["CREATE 565360"]}],"id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Practical implementation of two\u2010dimensional (2D) transition\u2010metal dichalcogenides (TMDCs) in novel optoelectronics requires a fundamental understanding of carrier dynamics and interfacial states at 2D\/3D heterostructures. Herein, a mixed\u2010dimensional p\u2010n junction based on monolayer tungsten disulfide () and cuprous oxide () is investigated. An anomalous emission (AE) at 1.66\u00a0eV is identified at room temperature, which is in the same spectral range as oxygen\u2010related  defect luminescence, but is enhanced at the heterointerface under 457\u00a0nm excitation. While this sub\u2010bandgap feature resembles the spectral signature of an interlayer exciton (ILX), its combined excitation\u2010wavelength, power, temperature, and bias dependence suggests that the emission is predominantly defect\u2010mediated and modified by the \/ interface. External modulation of the AE intensity is demonstrated via vertical bias, yielding an approximately 45% maximum\u2010to\u2010minimum modulation of the normalized AE\/ PL area ratio over the applied bias range from \u00a0V to \u00a0V at 93\u00a0K. This modulation is asymmetric, showing a correlation between AE quenching and photocurrent generation under reverse bias. The spectral response peaks near the open\u2010circuit condition, marking a regime of efficient carrier accumulation and interfacial trapping. These findings identify \/ as a model hybrid interface for probing electrically tunable defect\u2010mediated recombination in mixed\u2010dimensional\u00a0heterostructures.<\/jats:p>","DOI":"10.1002\/smll.75662","type":"journal-article","created":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T15:55:08Z","timestamp":1790006108000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Anomalous Sub\u2010Band Gap Emission at Room Temperature in Mixed\u2010Dimensional WS\n                    <sub>2<\/sub>\n                    \/Cu\n                    <sub>2<\/sub>\n                    O Heterostructures"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8737-6227","authenticated-orcid":false,"given":"Osamah","family":"Kharsah","sequence":"first","affiliation":[{"name":"Faculty of Physics and CENIDE University of Duisburg\u2010Essen Duisburg 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Duisburg\u2010Essen Duisburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-8138-9671","authenticated-orcid":false,"given":"Ibrahim","family":"Titi","sequence":"additional","affiliation":[{"name":"Faculty of Physics and CENIDE University of Duisburg\u2010Essen Duisburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7943-2089","authenticated-orcid":false,"given":"Yossarian","family":"Liebsch","sequence":"additional","affiliation":[{"name":"Faculty of Physics and CENIDE University of Duisburg\u2010Essen Duisburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oliver","family":"Altenhoff","sequence":"additional","affiliation":[{"name":"Faculty of Physics and CENIDE University of Duisburg\u2010Essen Duisburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1880-6550","authenticated-orcid":false,"given":"Ulrich","family":"Hagemann","sequence":"additional","affiliation":[{"name":"Interdisciplinary Center for the Analytics on the Nanoscale (ICAN) and CENIDE University of Duisburg\u2010Essen Duisburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anke","family":"Hierzenberger","sequence":"additional","affiliation":[{"name":"Faculty of Physics and CENIDE University of Duisburg\u2010Essen Duisburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9752-0015","authenticated-orcid":false,"given":"Kevin","family":"Musselman","sequence":"additional","affiliation":[{"name":"Mechanical Engineering University of Waterloo Waterloo Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5785-1186","authenticated-orcid":false,"given":"Marika","family":"Schleberger","sequence":"additional","affiliation":[{"name":"Faculty of Physics and CENIDE University of Duisburg\u2010Essen Duisburg 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