{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T09:29:40Z","timestamp":1785403780075,"version":"3.56.0"},"reference-count":31,"publisher":"Optica Publishing Group","issue":"11","license":[{"start":{"date-parts":[[2026,5,27]],"date-time":"2026-05-27T00:00:00Z","timestamp":1779840000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,5,27]],"date-time":"2026-05-27T00:00:00Z","timestamp":1779840000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["52373311"],"award-info":[{"award-number":["52373311"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"},{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["92263202"],"award-info":[{"award-number":["92263202"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"},{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["12374020"],"award-info":[{"award-number":["12374020"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"},{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Innovation Program for Quantum Science and Technology","award":["2021ZD0301605"],"award-info":[{"award-number":["2021ZD0301605"]}]},{"name":"National Key Research and Development Program of China","award":["2020YFA0711502"],"award-info":[{"award-number":["2020YFA0711502"]}]},{"name":"Strategic Priority Research Program of the Chinese Academy of Sciences","award":["XDB33000000"],"award-info":[{"award-number":["XDB33000000"]}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,6,1]]},"abstract":"<jats:p>\n                    Broadband photodetectors that operate across the visible to infrared spectrum are vital for applications in environmental monitoring, biomedicine, remote sensing, imaging, and optical communications. However, most existing devices require external bias, which undermines energy efficiency and slows response due to depletion-region perturbations. Here, we demonstrate a self-powered PtS\n                    <jats:sub>2<\/jats:sub>\n                    \/MoSe\n                    <jats:sub>2<\/jats:sub>\n                    van der Waals heterostructure photodetector that leverages type-II band alignment to establish a built-in electric field, enabling efficient carrier separation without external bias. The device exhibits an ultralow dark current of ~10\n                    <jats:sup>\u221213<\/jats:sup>\n                    A and a broadband response spanning 405\u20131064\u2009nm. Under 532\u2009nm excitation with a 0\u2009V bias, it achieves a responsivity of 0.22\u2009A W\n                    <jats:sup>\u22121<\/jats:sup>\n                    , a specific detectivity of 5.7 \u00d7 10\n                    <jats:sup>9<\/jats:sup>\n                    Jones, and an external quantum efficiency of 50.4%. Moreover, the heterostructure delivers high-quality imaging across the visible\u2013infrared regime. These results highlight the PtS\n                    <jats:sub>2<\/jats:sub>\n                    \/MoSe\n                    <jats:sub>2<\/jats:sub>\n                    heterostructure as a powerful platform for low-power, stable, and highly sensitive broadband photodetection, paving the way for advanced multispectral sensing and imaging technologies.\n                  <\/jats:p>","DOI":"10.1364\/ol.588165","type":"journal-article","created":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T13:00:10Z","timestamp":1778504410000},"page":"3152","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["High-performance self-powered broadband photodetector based on a PtS\n                    <sub>2<\/sub>\n                    \/MoSe\n                    <sub>2<\/sub>\n                    vertical heterostructure"],"prefix":"10.1364","volume":"51","author":[{"given":"Li","family":"Ding","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00f1zfq44","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xing","family":"Xie","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00f1zfq44","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Central South University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shaofei","family":"Li","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00f1zfq44","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Central South University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shikun","family":"Hou","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00f1zfq44","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun","family":"He","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00f1zfq44","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zongwen","family":"Liu","sequence":"additional","affiliation":[{"name":"The University of Sydney"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2990-3783","authenticated-orcid":true,"given":"Yanping","family":"Liu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00f1zfq44","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Central South University"},{"name":"Shenzhen Research Institute of Central South University"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,5,27]]},"reference":[{"key":"ol-51-11-3152-R1","doi-asserted-by":"publisher","first-page":"2001174","DOI":"10.1002\/aelm.202001174","type":"journal-article","volume":"7","author":"Sun","year":"2021","journal-title":"Adv. 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All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}