{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T15:33:31Z","timestamp":1787499211981,"version":"build-2736575974"},"reference-count":40,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T00:00:00Z","timestamp":1766361600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T00:00:00Z","timestamp":1766361600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62374037"],"award-info":[{"award-number":["62374037"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007219","name":"Natural Science Foundation of Shanghai Municipality","doi-asserted-by":"publisher","award":["20ZR1403200"],"award-info":[{"award-number":["20ZR1403200"]}],"id":[{"id":"10.13039\/100007219","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"published-print":{"date-parts":[[2026,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Unipolar barrier architecture has emerged as a transformative design for infrared photodetectors, leveraging selective carrier blocking to suppress dark currents while preserving photocurrent. 1D nanowires with strong optoelectronic\/polarization\u2010detection capabilities raise the question of whether their performance can be further enhanced via unipolar barrier engineering. Here, we developed a Bi\n                    <jats:sub>2<\/jats:sub>\n                    S\n                    <jats:sub>3<\/jats:sub>\n                    nanowire\u2010based unipolar barrier nBn photodetector using a novel dual\u2010process strategy that combines femtosecond laser ablation (for precise nanowire segmentation) and 2D WS\n                    <jats:sub>2<\/jats:sub>\n                    van der Waals integration (for barrier engineering). This 1D\/2D hybrid architecture suppresses dark currents by four orders of magnitude while realizing enhanced broadband polarization\u2010sensitive photoresponse, enabling high photoresponsivity (17.6 A\/W), detectivity (2.6\u00a0\u00d7\u00a010\n                    <jats:sup>11<\/jats:sup>\n                    \u00a0cm\u00a0H\n                    <jats:sup>1\/2<\/jats:sup>\n                    \u00a0W\n                    <jats:sup>\u22121<\/jats:sup>\n                    ), and robust linearly dichroic ratio (1.6) at near\u2010infrared (980\u00a0nm). Our work innovatively adopts unipolar barrier architectures to bridge the anisotropy of 1D nanowires and 2D barrier engineering, significantly enhancing the optoelectronic performance of 1D nanowires and paving the way for their high\u2010potential applications in infrared sensing, polarization detection, and dual\u2010band photodetection.\n                  <\/jats:p>","DOI":"10.1002\/smll.202512087","type":"journal-article","created":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T11:47:12Z","timestamp":1766404032000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Unipolar Barrier Engineering in 1D\/2D Hybrid Van der Waals Heterostructures for High\u2010Performance Broadband Polarization\u2010Sensitive Photodetection"],"prefix":"10.1002","volume":"22","author":[{"given":"Shuwen","family":"Shen","sequence":"first","affiliation":[{"name":"School of Information Science and Technology Fudan University  Shanghai 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