{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T12:59:06Z","timestamp":1790859546743,"version":"4.1.0"},"reference-count":38,"publisher":"Wiley","issue":"55","license":[{"start":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T00:00:00Z","timestamp":1785715200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T00:00:00Z","timestamp":1785715200000},"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":["W2511063"],"award-info":[{"award-number":["W2511063"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52422309"],"award-info":[{"award-number":["52422309"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52130304"],"award-info":[{"award-number":["52130304"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["525B2046"],"award-info":[{"award-number":["525B2046"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52373193"],"award-info":[{"award-number":["52373193"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52403240"],"award-info":[{"award-number":["52403240"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004608","name":"Natural Science Foundation of Jiangsu Province","doi-asserted-by":"publisher","award":["BK20230507"],"award-info":[{"award-number":["BK20230507"]}],"id":[{"id":"10.13039\/501100004608","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Materials"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Boron\/nitrogen\u2010embedded polycyclic frameworks are attractive emitters in organic light\u2010emitting diodes (OLEDs) because they combine narrowband emission with thermally activated delayed fluorescence. Linear extension of multiresonant frameworks with zigzag boron\/nitrogen alignment is predicted to enable bathochromic emission, reduced singlet\u2013triplet energy gaps, and enhanced oscillator strengths, yet experimental access to higher\u2010order structures remains challenging. Here we report a site\u2010programmable, stepwise borylation strategy for constructing a triboron DABNA\u2010extended framework with zigzag boron\/nitrogen alignment, L\u2010DABNA\u2010TriB. Our combined theoretical and experimental studies reveal how progressive linear extension from mono\u2010 to tri\u2010boron frameworks modulates the electronic structure, leading to bandgap narrowing, strengthened radiative transition, and near\u2010degenerate singlet and triplet excited states. Importantly, L\u2010DABNA\u2010TriB in toluene exhibits yellow\u2013orange emission at 559 nm with a narrow full width at half\u2010maximum of 33 nm\/0.13 eV, a singlet\u2013triplet energy gap of ca. 4 meV, and a radiative decay rate of 1.5 \u00d7 10\n                    <jats:sup>8<\/jats:sup>\n                    s\n                    <jats:sup>\u22121<\/jats:sup>\n                    . A non\u2010sensitized OLED based on\n                    <jats:sc>L<\/jats:sc>\n                    \u2010DABNA\u2010TriB achieves a maximum external quantum efficiency of 38.0% and retains 35.2% at 1000 cd m\n                    <jats:sup>\u22122<\/jats:sup>\n                    . This work establishes zigzag boron\/nitrogen\u2010aligned linear extension as an effective molecular design strategy for narrowband emitters with efficient exciton harvesting at long wavelengths.\n                  <\/jats:p>","DOI":"10.1002\/adma.74444","type":"journal-article","created":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T09:53:45Z","timestamp":1785750825000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Triboron Multiresonant Emitter With Zigzag B\/N Alignment Enables Near\u2010Degenerate Singlet\u2013Triplet States for High\u2010Performance Non\u2010Sensitized OLEDs With Mild Roll\u2010Off"],"prefix":"10.1002","volume":"38","author":[{"given":"Xin","family":"Xiong","sequence":"first","affiliation":[{"name":"Institute of Functional Nano &amp; Soft Materials (FUNSOM) Joint International Research Laboratory of Carbon\u2010Based Functional Materials and Devices Soochow University  Suzhou Jiangsu P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0316-9819","authenticated-orcid":false,"given":"Wei\u2010Xiong","family":"Guo","sequence":"additional","affiliation":[{"name":"Department of Chemistry City University of Hong Kong  Hong Kong SAR P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2946-1225","authenticated-orcid":false,"given":"Rajat","family":"Walia","sequence":"additional","affiliation":[{"name":"Institute of Functional Nano &amp; Soft Materials (FUNSOM) Joint International Research Laboratory of Carbon\u2010Based Functional Materials and Devices Soochow University  Suzhou Jiangsu P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cheng\u2010Xi","family":"Li","sequence":"additional","affiliation":[{"name":"Institute of Functional Nano &amp; Soft Materials (FUNSOM) Joint International Research Laboratory of Carbon\u2010Based Functional Materials and Devices Soochow University  Suzhou Jiangsu P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4628-8228","authenticated-orcid":false,"given":"Xiao\u2010Chun","family":"Fan","sequence":"additional","affiliation":[{"name":"Institute of Functional Nano &amp; Soft Materials (FUNSOM) Joint International Research Laboratory of Carbon\u2010Based Functional Materials and Devices Soochow University  Suzhou Jiangsu P. R. China"},{"name":"Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow University  Suzhou Jiangsu P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8580-7246","authenticated-orcid":false,"given":"Xian\u2010Kai","family":"Chen","sequence":"additional","affiliation":[{"name":"Institute of Functional Nano &amp; Soft Materials (FUNSOM) Joint International Research Laboratory of Carbon\u2010Based Functional Materials and Devices Soochow University  Suzhou Jiangsu P. R. China"},{"name":"State Key Laboratory of Bioinspired Interfacial Materials Science Soochow University  Suzhou Jiangsu P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8397-9618","authenticated-orcid":false,"given":"Yi\u2010Zhong","family":"Shi","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering Suzhou University of Science and Technology  Suzhou Jiangsu P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jia","family":"Yu","sequence":"additional","affiliation":[{"name":"Institute of Functional Nano &amp; Soft Materials (FUNSOM) Joint International Research Laboratory of Carbon\u2010Based Functional Materials and Devices Soochow University  Suzhou Jiangsu P. R. China"},{"name":"Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow University  Suzhou Jiangsu P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9860-2282","authenticated-orcid":false,"given":"Kai","family":"Wang","sequence":"additional","affiliation":[{"name":"Institute of Functional Nano &amp; Soft Materials (FUNSOM) Joint International Research Laboratory of Carbon\u2010Based Functional Materials and Devices Soochow University  Suzhou Jiangsu P. R. China"},{"name":"State Key Laboratory of Bioinspired Interfacial Materials Science Soochow University  Suzhou Jiangsu P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6732-2499","authenticated-orcid":false,"given":"Xiao\u2010Hong","family":"Zhang","sequence":"additional","affiliation":[{"name":"Institute of Functional Nano &amp; Soft Materials (FUNSOM) Joint International Research Laboratory of Carbon\u2010Based Functional Materials and Devices Soochow University  Suzhou Jiangsu P. R. China"},{"name":"Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow University  Suzhou Jiangsu P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,3]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature11687"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.3c00755"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1246\/cl.200915"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010020\u201015558\u20105"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41563\u2010019\u20100465\u20106"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1039\/c2cc36237f"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemmater.6b05324"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpcc.9b08269"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010023\u201038086\u20104"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1039\/D0TC02682D"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201505491"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3CS00837A"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41563\u2010025\u201002309\u20104"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41566\u2010024\u201001508\u2010w"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201911266"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/adom.201902142"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1039\/D5CP03248B"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202516696"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010019\u201008495\u20105"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202304104"},{"key":"e_1_2_9_22_1","doi-asserted-by":"publisher","DOI":"10.1002\/cphc.202400955"},{"key":"e_1_2_9_23_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.201908677"},{"key":"e_1_2_9_24_1","doi-asserted-by":"publisher","DOI":"10.1002\/adom.202201714"},{"key":"e_1_2_9_25_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202410096"},{"key":"e_1_2_9_26_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.7b10578"},{"key":"e_1_2_9_27_1","doi-asserted-by":"publisher","DOI":"10.1039\/D5SC05501F"},{"key":"e_1_2_9_28_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202306768"},{"key":"e_1_2_9_29_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202201588"},{"key":"e_1_2_9_30_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3CC05460H"},{"key":"e_1_2_9_31_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41566\u2010019\u20100476\u20105"},{"key":"e_1_2_9_32_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202201442"},{"key":"e_1_2_9_33_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3MH00800B"},{"key":"e_1_2_9_34_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202305580"},{"key":"e_1_2_9_35_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202318433"},{"key":"e_1_2_9_36_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202414882"},{"key":"e_1_2_9_37_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202522105"},{"key":"e_1_2_9_38_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.2c10946"},{"key":"e_1_2_9_39_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202512162"}],"container-title":["Advanced Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/adma.74444","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/adma.74444","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/adma.74444","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T12:32:11Z","timestamp":1790857931000},"score":1,"resource":{"primary":{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/10.1002\/adma.74444"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8,3]]},"references-count":38,"journal-issue":{"issue":"55","published-print":{"date-parts":[[2026,10]]}},"alternative-id":["10.1002\/adma.74444"],"URL":"https:\/\/doi.org\/10.1002\/adma.74444","archive":["Portico"],"relation":{},"ISSN":["0935-9648","1521-4095"],"issn-type":[{"value":"0935-9648","type":"print"},{"value":"1521-4095","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,8,3]]},"assertion":[{"value":"2026-05-18","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-07-21","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-08-03","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e74444"}}