{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T19:45:32Z","timestamp":1792784732179,"version":"4.5.0"},"reference-count":33,"publisher":"American Chemical Society (ACS)","issue":"38","license":[{"start":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T00:00:00Z","timestamp":1789689600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T00:00:00Z","timestamp":1789689600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T00:00:00Z","timestamp":1789689600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-045"}],"funder":[{"name":"Science and Technology Program of Guangzhou","award":["2025A04J1892"],"award-info":[{"award-number":["2025A04J1892"]}]},{"name":"Science and Technology Program of Guangzhou","award":["2025A04J5276"],"award-info":[{"award-number":["2025A04J5276"]}]},{"name":"Guangdong Basic and Applied Basic Research Foundation","award":["2026A1515012406"],"award-info":[{"award-number":["2026A1515012406"]}]},{"name":"National Natural Science Foundation of China (NSFC)","award":["12464028"],"award-info":[{"award-number":["12464028"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"crossref"}]},{"name":"National Natural Science Foundation of China (NSFC)","award":["52301039"],"award-info":[{"award-number":["52301039"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"crossref"}]},{"name":"National Natural Science Foundation of China (NSFC)","award":["62505095"],"award-info":[{"award-number":["62505095"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,9,30]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Precise heteroepitaxial control in van der Waals (vdW) heterostructures remains a challenge. Here, we demonstrate a visualized and directed heteroepitaxy strategy for GeSe on WSe2 by integrating in situ imaging with symmetry-guided physical vapor deposition. Real-time observation captures the nucleation kinetics and orientation evolution, accelerating process optimization. Combined density functional theory calculations and transmission electron microscope characterizations identify a preferential epitaxial angle of 20\u00b0 (occurrence: 59.37%) for most GeSe nanosheets, corresponding to the global energy minimum governed by lattice symmetry. Coverage-tunable photodetectors are constructed by modulating GeSe nanosheets\u2019 number, delivering a three-orders-of-magnitude enhancement in responsivity at 808 nm (823.8 A\/W at maximum coverage). This is attributed to optimized light harvesting in GeSe and a photogating effect via back-to-back type-II band alignment. High-contrast single-pixel imaging is also demonstrated. This work establishes a paradigm for visualized synthesis and performance optimization of monochalcogenide-based vdW heterostructures.<\/jats:p>","DOI":"10.1021\/acs.nanolett.6c03380","type":"journal-article","created":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T04:01:23Z","timestamp":1789790483000},"page":"13035-13042","source":"Crossref","is-referenced-by-count":0,"title":["Visualizing\nHeteroepitaxy of Angle-Oriented GeSe\/WSe2 Heterostructures\nfor Near-Infrared Ultrasensitive Photodetectors"],"prefix":"10.1021","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9060-5940","authenticated-orcid":true,"given":"Mengmeng","family":"Yang","sequence":"first","affiliation":[{"name":"South China Normal University , , ,","place":["Foshan, P. R. China, 528225"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shijuan","family":"Ran","sequence":"additional","affiliation":[{"name":"South China Normal University , , ,","place":["Foshan, P. R. China, 528225"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shangyu","family":"Dai","sequence":"additional","affiliation":[{"name":"South China Normal University , , ,","place":["Foshan, P. R. China, 528225"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianjun","family":"Qiu","sequence":"additional","affiliation":[{"name":"South China Normal University , , ,","place":["Foshan, P. R. China, 528225"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xueting","family":"Liu","sequence":"additional","affiliation":[{"name":"South China Normal University , , ,","place":["Foshan, P. R. China, 528225"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qunrui","family":"Deng","sequence":"additional","affiliation":[{"name":"South China Normal University , , ,","place":["Foshan, P. R. China, 528225"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haiyuan","family":"Chen","sequence":"additional","affiliation":[{"name":"Guangxi Normal University , , ,","place":["Guilin, P. R. China, 541004"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhixin","family":"Luo","sequence":"additional","affiliation":[{"name":"South China Normal University , , ,","place":["Foshan, P. R. China, 528225"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huawen","family":"Quan","sequence":"additional","affiliation":[{"name":"Guangdong University of Technology , , , ,","place":["Guangzhou, Guangdong, P. R. China, 510006"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2520-6243","authenticated-orcid":true,"given":"Nengjie","family":"Huo","sequence":"additional","affiliation":[{"name":"South China Normal University , , ,","place":["Foshan, P. R. China, 528225"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8503-2479","authenticated-orcid":true,"given":"Jun","family":"Liu","sequence":"additional","affiliation":[{"name":"Guangxi Normal University , , ,","place":["Guilin, P. R. China, 541004"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenlong","family":"Chen","sequence":"additional","affiliation":[{"name":"Guangdong Academy of Sciences , , ,","place":["Guangzhou, P. R. China, 510650"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhaoqiang","family":"Zheng","sequence":"additional","affiliation":[{"name":"Guangdong University of Technology , , , ,","place":["Guangzhou, Guangdong, P. R. China, 510006"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-7450-0620","authenticated-orcid":true,"given":"Zuxin","family":"Chen","sequence":"additional","affiliation":[{"name":"South China Normal University , , ,","place":["Foshan, P. R. China, 528225"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8159-3957","authenticated-orcid":true,"given":"Wei","family":"Gao","sequence":"additional","affiliation":[{"name":"South China Normal University , , ,","place":["Foshan, P. R. China, 528225"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,9,18]]},"reference":[{"key":"2026093009090552100_cit1","doi-asserted-by":"publisher","first-page":"562","DOI":"10.1038\/s41467-023-44598-w","article-title":"Reconfiguring Nucleation for CVD Growth of Twisted\nBilayer MoS2 with a Wide Range of Twist Angles","volume":"15","author":"Xu","year":"2024","journal-title":"Nat. Commun."},{"key":"2026093009090552100_cit2","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202415214","article-title":"Structure-Dependent\nNonlinear Optical Effects in Spiral WS2 Nanosheets","volume":"37","author":"Chen","year":"2025","journal-title":"Adv. Mater."},{"key":"2026093009090552100_cit3","doi-asserted-by":"publisher","first-page":"9122","DOI":"10.1021\/jacs.4c11531","article-title":"Low-Temperature Growth of Centimeter-Sized\n2D PdSe2 by Self-Limiting Liquid-Phase Edge Epitaxy","volume":"147","author":"Liu","year":"2025","journal-title":"J. Am. Chem. Soc."},{"key":"2026093009090552100_cit4","doi-asserted-by":"publisher","first-page":"999","DOI":"10.1021\/accountsmr.2c00096","article-title":"Controlled\nGrowth of Two-Dimensional Heterostructures: In-Plane Epitaxy or Vertical\nStack","volume":"3","author":"Liang","year":"2022","journal-title":"Acc. Mater. Res."},{"key":"2026093009090552100_cit5","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202408367","article-title":"Robust Growth of 2D\nTransition Metal Dichalcogenide Vertical Heterostructures via Ammonium-Assisted\nCVD Strategy","volume":"36","author":"Li","year":"2024","journal-title":"Adv. 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Rev."},{"key":"2026093009090552100_cit22","doi-asserted-by":"publisher","first-page":"11034","DOI":"10.1021\/acs.nanolett.3c03328","article-title":"In Situ Defect\nEngineering of Controllable Carrier Types in WSe2 for Homomaterial\nInverters and Self-Powered Photodetectors","volume":"23","author":"Kang","year":"2023","journal-title":"Nano\nLett."},{"key":"2026093009090552100_cit23","doi-asserted-by":"publisher","first-page":"1810","DOI":"10.1038\/s41467-025-57138-5","article-title":"Unconventional\n(anti)ferroelectricity in van der Waals group-IV monochalcogenides","volume":"16","author":"Sui","year":"2025","journal-title":"Nat. Commun."},{"key":"2026093009090552100_cit24","doi-asserted-by":"publisher","DOI":"10.1002\/advs.201800478","article-title":"Highly Anisotropic\nGeSe Nanosheets\nfor Phototransistors with Ultrahigh Photoresponsivity","volume":"5","author":"Zhou","year":"2018","journal-title":"Adv. Sci."},{"key":"2026093009090552100_cit25","doi-asserted-by":"publisher","first-page":"1557","DOI":"10.1021\/acsphotonics.3c01708","article-title":"Ferroelectric Gate\nEnabled Programmable Photovoltaics in vdWHs for Self-Powered In-Memory\nLogics","volume":"11","author":"Jiang","year":"2024","journal-title":"ACS Photonics"},{"key":"2026093009090552100_cit26","doi-asserted-by":"publisher","DOI":"10.1002\/aelm.202500108","article-title":"A Strategic Approach\nfor Enhanced p-Type Doping of\nWSe2 p-MOSFETs Using an Atomic Oxidation Process","volume":"11","author":"Seo","year":"2025","journal-title":"Adv. Electron. Mater."},{"key":"2026093009090552100_cit27","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.103.085404","article-title":"Thickness dependence of work function, ionization energy,\nand electron affinity of Mo and W dichalcogenides from DFT and GW\ncalculations","volume":"103","author":"Kim","year":"2021","journal-title":"Phys. Rev. B"},{"key":"2026093009090552100_cit28","doi-asserted-by":"publisher","first-page":"1308","DOI":"10.1021\/acsnano.1c09183","article-title":"Electric-Field-Induced\nRoom-Temperature Antiferroelectric\u2013Ferroelectric\nPhase Transition in van der Waals Layered GeSe","volume":"16","author":"Guan","year":"2022","journal-title":"ACS Nano"},{"key":"2026093009090552100_cit29","doi-asserted-by":"publisher","DOI":"10.1002\/adom.71020","article-title":"Multidimensional Photodetection with\na Broadband-Sensitive and Polarimetric TiS3\/In2S3 Heterojunction","volume":"14","author":"Li","year":"2026","journal-title":"Adv. Opt. Mater."},{"key":"2026093009090552100_cit30","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2026.176266","article-title":"Finite element\nsimulation-assisted CVD synthesis of two-dimensional Bi2O2Te nanosheets for high-performance heterojunction photodetectors","volume":"537","author":"Cui","year":"2026","journal-title":"Chem. Eng. J."},{"key":"2026093009090552100_cit31","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.202527684","article-title":"Contact\nEngineering\nwith Selenium Interlayers for High-Performance p-Type Two-Dimensional\nWSe2 Transistors","volume":"36","author":"Kim","year":"2026","journal-title":"Adv. Funct. Mater."},{"key":"2026093009090552100_cit32","doi-asserted-by":"publisher","first-page":"5741","DOI":"10.1021\/acs.nanolett.0c01460","article-title":"Ultrasensitive\nphototransistor based on WSe2-MoS2 van der Waals\nheterojunction","volume":"20","author":"Shin","year":"2020","journal-title":"Nano Lett."},{"key":"2026093009090552100_cit33","doi-asserted-by":"publisher","DOI":"10.1002\/adom.202502206","article-title":"Bioinspired ZnO\/WS2 heterostructure photodetectors with\nvoltage-driven spectral discrimination enabling anti-interference\ndual-band imaging and optical computing","volume":"13","author":"Qiu","year":"2025","journal-title":"Adv.\nOpt. Mater."}],"container-title":["Nano Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.acs.org\/doi\/pdf\/10.1021\/acs.nanolett.6c03380","content-type":"application\/pdf","content-version":"vor","intended-application":"unspecified"},{"URL":"https:\/\/pubs.acs.org\/nalefd\/article-pdf\/26\/38\/13035\/68562941\/acs.nanolett.6c03380.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.acs.org\/nalefd\/article-pdf\/26\/38\/13035\/68562941\/acs.nanolett.6c03380.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T13:31:13Z","timestamp":1790775073000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.acs.org\/nalefd\/article\/26\/38\/13035\/5433213\/Visualizing-Heteroepitaxy-of-Angle-Oriented-GeSe"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,18]]},"references-count":33,"journal-issue":{"issue":"38","published-online":{"date-parts":[[2026,9,18]]},"published-print":{"date-parts":[[2026,9,30]]}},"URL":"https:\/\/doi.org\/10.1021\/acs.nanolett.6c03380","relation":{},"ISSN":["1530-6984","1530-6992"],"issn-type":[{"value":"1530-6984","type":"print"},{"value":"1530-6992","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,18]]}}}