{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,22]],"date-time":"2026-08-22T09:23:32Z","timestamp":1787390612861,"version":"build-2736575974"},"reference-count":53,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,8,22]],"date-time":"2026-08-22T00:00:00Z","timestamp":1787356800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,8,22]],"date-time":"2026-08-22T00:00:00Z","timestamp":1787356800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Smart Molecules"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Ultraviolet organic light\u2010emitting diodes (UV\u2010OLEDs) have attracted increasing attention in the applications of phototherapy, high\u2010density information storage, sterilization, photocuring and so on, yet the development of efficient short\u2010wavelength emitters remains challenging due to the irreconcilable contradiction between fluorescence efficiency and short molecular conjugation length. Here, we design and synthesize a simple yet efficient donor\u2013acceptor\u2013donor (D\u2013A\u2013D) type UV emitter D3CZ4F featuring a hybridized local and charge transfer state, via a facile one\u2010step coupling reaction. The multiple intramolecular non\u2010covalent C\u2013H\u22efF locking interactions enhance molecular rigidity as well as promote the planarization of the excited state geometry, leading to a large oscillator strength of 1.3989 and a high solid\u2010state photoluminescence quantum yield of 86%. Consequently, the doped device with D3CZ4F as an emitter not only emits high color\u2010purity UV emission at 388\u00a0nm with color coordinates of (0.165, 0.025), but also furnishes a maximum external quantum efficiency (EQE) of up to 8.97% and a small roll\u2010off with the EQE of 8.15% at 500\u00a0cd\u00a0m\n                    <jats:sup>\u22122<\/jats:sup>\n                    . Moreover, the non\u2010doped device achieved a surprised EQE of 7.33% with an emission peak at 390\u00a0nm and color coordinates of (0.164, 0.027), respectively.\n                  <\/jats:p>","DOI":"10.1002\/smo2.70090","type":"journal-article","created":{"date-parts":[[2026,8,22]],"date-time":"2026-08-22T08:35:00Z","timestamp":1787387700000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Facile one\u2010step synthesis of efficient hybridized local and charge transfer emitter for ultraviolet electroluminescence with low roll\u2010off"],"prefix":"10.1002","author":[{"given":"Shengnan","family":"Wang","sequence":"first","affiliation":[{"name":"Key Laboratory of Rubber\u2010Plastics, State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, Ministry of Education Qingdao University of Science and Technology  Qingdao China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jixiang","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Rubber\u2010Plastics, State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, Ministry of Education Qingdao University of Science and Technology  Qingdao China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Danyu","family":"Xie","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, Center for Aggregation\u2010Induced Emission South China University of Technology  Guangzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4313-2954","authenticated-orcid":false,"given":"Ling","family":"Peng","sequence":"additional","affiliation":[{"name":"College of Chemistry and Chemical Engineering Heze University  Heze China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9088-3852","authenticated-orcid":false,"given":"Yuchao","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Rubber\u2010Plastics, State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, Ministry of Education Qingdao University of Science and Technology  Qingdao China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1980-8507","authenticated-orcid":false,"given":"Junjie","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Rubber\u2010Plastics, State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, Ministry of Education Qingdao University of Science and Technology  Qingdao China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0781-240X","authenticated-orcid":false,"given":"Shian","family":"Ying","sequence":"additional","affiliation":[{"name":"Key Laboratory of Rubber\u2010Plastics, State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, Ministry of Education Qingdao University of Science and Technology  Qingdao China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7779-6113","authenticated-orcid":false,"given":"Dongge","family":"Ma","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, Center for Aggregation\u2010Induced Emission South China University of Technology  Guangzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1627-341X","authenticated-orcid":false,"given":"Shouke","family":"Yan","sequence":"additional","affiliation":[{"name":"Key Laboratory of Rubber\u2010Plastics, State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, Ministry of Education Qingdao University of Science and Technology  Qingdao China"},{"name":"State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering Beijing University of Chemical Technology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,22]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"crossref","first-page":"992","DOI":"10.1002\/adma.200401476","volume":"17","author":"Chao T.","year":"2005","journal-title":"Adv. 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