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With the growing demand for faster and energy\u2010efficient devices, 2D contact engineering offers a promising solution. Beyond graphene, 1T\u2032\u2010WTe\n                    <jats:sub>2<\/jats:sub>\n                    has attracted attention for its excellent electrical transport, quantum phenomena, and Weyl semimetallic properties. Here, the direct wafer\u2010scale growth of 1T\u2032\u2010WTe\n                    <jats:sub>2<\/jats:sub>\n                    via molecular beam epitaxy (MBE) and its use as a 2D contact for layered materials, such as InSe, are demonstrated. The 1T\u2032\u2010WTe\n                    <jats:sub>2<\/jats:sub>\n                    \/InSe interface exhibits a barrier height nearly half that of conventional metal contacts, and its contact resistance is reduced by a factor of 21, effectively suppressing Fermi\u2010level pinning and enabling efficient electron injection. InSe\/1T\u2032\u2010WTe\n                    <jats:sub>2<\/jats:sub>\n                    photodetectors show broad photoresponsivity (0.14\u2013217.58\u00a0A W\n                    <jats:sup>\u22121<\/jats:sup>\n                    ) under NIR to DUV illumination with fast rise\/fall times of 42\/126\u00a0ms, compared to lower responsivity (8.65\u00a0\u00d7\u00a010\n                    <jats:sup>\u22124<\/jats:sup>\n                    \u20133.64\u00a0A W\n                    <jats:sup>\u22121<\/jats:sup>\n                    ) and slower response (150\/144\u00a0ms) for InSe\/Ti\u2013Au devices. The 1T\u2032\u2010WTe\n                    <jats:sub>2<\/jats:sub>\n                    \/InSe devices thus exhibit \u224860 \u00d7 higher responsivity and \u22484 \u00d7 faster response than conventional metal contacts. These results establish MBE\u2010grown 1T\u2032\u2010WTe\n                    <jats:sub>2<\/jats:sub>\n                    as an effective 2D electrode, enhancing photodetection performance while simplifying device architecture, making it a strong candidate for next\u2010generation nanoelectronic and optoelectronic\u00a0devices.\n                  <\/jats:p>","DOI":"10.1002\/smll.202504150","type":"journal-article","created":{"date-parts":[[2025,10,22]],"date-time":"2025-10-22T15:57:33Z","timestamp":1761148653000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Engineering 2D Van der Waals Electrode via MBE\u2010Grown Weyl Semimetal 1T\u2032\u2010WTe\n                    <sub>2<\/sub>\n                    for Enhanced Photodetection in InSe"],"prefix":"10.1002","volume":"21","author":[{"given":"Biswajit","family":"Khan","sequence":"first","affiliation":[{"name":"Centre for Applied Research in Electronics Indian 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