{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T19:13:50Z","timestamp":1789758830592,"version":"4.0.1"},"reference-count":40,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T00:00:00Z","timestamp":1789689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T00:00:00Z","timestamp":1789689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100003382","name":"Core Research for Evolutional Science and Technology","doi-asserted-by":"publisher","award":["JPMJCR24A5"],"award-info":[{"award-number":["JPMJCR24A5"]}],"id":[{"id":"10.13039\/501100003382","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002241","name":"Japan Science and Technology Agency","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002241","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62120106001"],"award-info":[{"award-number":["62120106001"]}],"id":[{"id":"10.13039\/501100001809","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>\n                    Optical nonlinearity in two\u2010dimensional (2D) materials underpins a wide range of photonic and quantum technologies, yet second\u2010order nonlinearity is symmetry\u2010forbidden in centrosymmetric systems, unless the inversion symmetry is broken by external factors or interfacial effects. Although interfacial charge transfer in 2D heterostructures is widely inferred to induce second\u2010order nonlinear responses, electrical signatures linking emergent nonlinearity to charge redistribution remain elusive. Here, we report the activation of second\u2010harmonic generation (SHG) in centrosymmetric bilayer 2H\u2010MoTe\n                    <jats:sub>2<\/jats:sub>\n                    via interfacial coupling with anisotropic NbOCl\n                    <jats:sub>2<\/jats:sub>\n                    . By employing a field\u2010effect transistor configuration in which both source and drain electrodes are deliberately placed on the MoTe\n                    <jats:sub>2<\/jats:sub>\n                    layer, we isolate lateral channel transport from interfacial coupling, enabling direct electrical probing of interfacial charge transfer. Optical and electrical measurements reveal that charge\u2010transfer\u2010induced charge redistribution breaks the inversion symmetry of MoTe\n                    <jats:sub>2<\/jats:sub>\n                    , thereby generating an effective second\u2010order polarization. Furthermore, we show that SHG anisotropy in bilayer MoTe\n                    <jats:sub>2<\/jats:sub>\n                    exhibits decoupling from the principal axis of NbOCl\n                    <jats:sub>2<\/jats:sub>\n                    , reflecting interlayer screening and modified symmetry transfer. This work establishes an electrical link between interfacial charge redistribution and nonlinear optical response in centrosymmetric 2D materials, providing insights for designing electrically tunable nonlinear photonic devices and integrated quantum light sources based on layered heterostructures.\n                  <\/jats:p>","DOI":"10.1002\/smll.75851","type":"journal-article","created":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T18:41:09Z","timestamp":1789756869000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Electrical Signatures of Interfacial Charge Transfer Enabling Second\u2010Harmonic Generation in Centrosymmetric Bilayer MoTe\n                    <sub>2<\/sub>"],"prefix":"10.1002","author":[{"given":"Chengcai","family":"Zhu","sequence":"first","affiliation":[{"name":"School of Optoelectronic Science and Engineering &amp; Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University  Suzhou China"},{"name":"Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province &amp; Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University  Suzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kai","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Optoelectronic Science and Engineering &amp; Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University  Suzhou China"},{"name":"Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province &amp; Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University  Suzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chao","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Optoelectronic Science and Engineering &amp; Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University  Suzhou 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and Physics (NUAA) MIIT  Nanjing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6840-6136","authenticated-orcid":false,"given":"Xiaoming","family":"Yuan","sequence":"additional","affiliation":[{"name":"Key Laboratory of Micro\u2010Nano Fabrication and Device Manufacturing in Universities of Hunan Province School of Physics Central South University  Changsha Hunan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4115-3287","authenticated-orcid":false,"given":"Xiaofeng","family":"Li","sequence":"additional","affiliation":[{"name":"School of Optoelectronic Science and Engineering &amp; Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University  Suzhou China"},{"name":"Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province &amp; Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University  Suzhou 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