{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,12]],"date-time":"2026-11-12T11:07:10Z","timestamp":1794481630842,"version":"4.9.1"},"reference-count":39,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T00:00:00Z","timestamp":1764115200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T00:00:00Z","timestamp":1764115200000},"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":["52473195"],"award-info":[{"award-number":["52473195"]}],"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":["52303250"],"award-info":[{"award-number":["52303250"]}],"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":["52373192"],"award-info":[{"award-number":["52373192"]}],"id":[{"id":"10.13039\/501100001809","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":[[2026,2]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Achieving deep\u2010blue emission with high efficiency and color purity remains a major challenge for next\u2010generation organic light\u2010emitting diodes (OLEDs), particularly those targeting the BT.2020 color standard. Herein, a methyl substitution\u2010induced molecular distortion strategy is proposed to construct deep\u2010blue multi\u2010resonance thermally activated delayed fluorescence emitters (\n                    <jats:bold>BN\u2010M2<\/jats:bold>\n                    and\n                    <jats:bold>BN\u2010M3<\/jats:bold>\n                    ), that simultaneously enhance spin\u2013orbit coupling and suppress \u03c0\u2010\u03c0 stacking. Strategic methyl substitution induces significant distortion in the B\/N core geometry (dihedral angle &gt; 40\u00b0), boosting reverse intersystem crossing rates (up to 2.71 \u00d7 10\n                    <jats:sup>6<\/jats:sup>\n                    s\n                    <jats:sup>\u22121<\/jats:sup>\n                    ) and mitigating aggregation\u2010caused quenching. The optimized emitters achieve narrowband deep\u2010blue emission (Commission Internationale de l'\u00c9clairage y coordinate, CIE\n                    <jats:sub>y<\/jats:sub>\n                    = 0.045) and near\u2010ultraviolet emission (CIE\n                    <jats:sub>y<\/jats:sub>\n                    = 0.035), with a full width at half maximum of 22\u201324\u00a0nm and near\u2010unity photoluminescence quantum yields (\u2248100%). Furthermore, OLEDs show record\u2010high external quantum efficiency with minimal roll\u2010off:\n                    <jats:bold>BN\u2010M3<\/jats:bold>\n                    achieves 34.8% for BT.2020 blue emission, while\n                    <jats:bold>BN\u2010M2<\/jats:bold>\n                    reaches 21.4% in the near\u2010UV spectrum, setting a new benchmark. Notably, the device performance remains stable even at high doping concentrations (up to 15 wt%). This work provides a viable pathway toward realizing BT.2020\u2010compliant blue OLEDs with both outstanding optoelectronic performance and excellent industrial processability.\n                  <\/jats:p>","DOI":"10.1002\/adma.202514617","type":"journal-article","created":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T12:05:25Z","timestamp":1764158725000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Methylation\u2010Engineered MR\u2010TADF Emitters for BT.2020\u2010Compliant Deep\u2010Blue OLEDs with High\n                    <i>k<\/i>\n                    <sub>RISC<\/sub>\n                    and ACQ Resistance"],"prefix":"10.1002","volume":"38","author":[{"given":"Yuyuan","family":"Wang","sequence":"first","affiliation":[{"name":"PCFM Lab GD HPPC Lab Guangdong Engineering Technology Research Center for High\u2010performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of Optoelectronic Material and Technologies School of Chemistry Sun Yat\u2010sen University  Guangzhou 510275 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoyu","family":"Guo","sequence":"additional","affiliation":[{"name":"Shenzhen Key Laboratory of New Information Display and Storage Materials College of Materials Science and Engineering Shenzhen University  Shenzhen 518055 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinkun","family":"Bian","sequence":"additional","affiliation":[{"name":"PCFM Lab GD HPPC Lab Guangdong Engineering Technology Research Center for High\u2010performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of Optoelectronic Material and Technologies School of Chemistry Sun Yat\u2010sen University  Guangzhou 510275 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiwei","family":"Ma","sequence":"additional","affiliation":[{"name":"PCFM Lab GD HPPC Lab Guangdong Engineering Technology Research Center for High\u2010performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of Optoelectronic Material and Technologies School of Chemistry Sun Yat\u2010sen University  Guangzhou 510275 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiangyu","family":"Ge","sequence":"additional","affiliation":[{"name":"PCFM Lab GD HPPC Lab Guangdong Engineering Technology Research Center for High\u2010performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of Optoelectronic Material and Technologies School of Chemistry Sun Yat\u2010sen University  Guangzhou 510275 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3230-4522","authenticated-orcid":false,"given":"Long","family":"Jiang","sequence":"additional","affiliation":[{"name":"Instrumental Analysis &amp; Research Center Sun Yat\u2010sen University  Guangzhou 510275 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gaoyu","family":"Li","sequence":"additional","affiliation":[{"name":"PCFM Lab GD HPPC Lab Guangdong Engineering Technology Research Center for High\u2010performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of Optoelectronic Material and Technologies School of Chemistry Sun Yat\u2010sen University  Guangzhou 510275 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhu","family":"Chen","sequence":"additional","affiliation":[{"name":"PCFM Lab GD HPPC Lab Guangdong Engineering Technology Research Center for High\u2010performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of Optoelectronic Material and Technologies School of Chemistry Sun Yat\u2010sen University  Guangzhou 510275 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Danman","family":"Guo","sequence":"additional","affiliation":[{"name":"PCFM Lab GD HPPC Lab Guangdong Engineering Technology Research Center for High\u2010performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of Optoelectronic Material and Technologies School of Chemistry Sun Yat\u2010sen University  Guangzhou 510275 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Environmental and Chemical Engineering Wuyi University  Jiangmen 529020 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhan","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Environmental and Chemical Engineering Wuyi University  Jiangmen 529020 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingsheng","family":"Miao","sequence":"additional","affiliation":[{"name":"Shenzhen Key Laboratory of New Information Display and Storage Materials College of Materials Science and Engineering Shenzhen University  Shenzhen 518055 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9772-5363","authenticated-orcid":false,"given":"Zhenguo","family":"Chi","sequence":"additional","affiliation":[{"name":"PCFM Lab GD HPPC Lab Guangdong Engineering Technology Research Center for High\u2010performance Organic and Polymer Photoelectric Functional Films State Key Laboratory of Optoelectronic Material and Technologies School of Chemistry Sun Yat\u2010sen University  Guangzhou 510275 China"},{"name":"School of Environmental and Chemical Engineering Wuyi University  Jiangmen 529020 China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,11,26]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41586-021-03295-8"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1126\/sciadv.1501856"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.abc8530"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41566-021-00765-3"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41566-020-00745-z"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/cr400704v"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1039\/c3cs35440g"},{"key":"e_1_2_7_8_1","first-page":"26","volume":"32","author":"Soneira R. M.","year":"2016","journal-title":"Inf. Disp."},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201505491"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3CS00837A"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41566-024-01508-w"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41566-019-0476-5"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202308314"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202215522"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202107951"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202300997"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsami.0c20619"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1002\/adom.201902142"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202012891"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202201588"},{"key":"e_1_2_7_21_1","volume":"30","author":"Suresh S. M.","year":"2020","journal-title":"Adv. Funct. Mater."},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41566-022-01083-y"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202116927"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202007210"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1002\/adom.202203002"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202201886"},{"key":"e_1_2_7_27_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202113206"},{"key":"e_1_2_7_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2021.131169"},{"key":"e_1_2_7_29_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202108283"},{"key":"e_1_2_7_30_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-019-08495-5"},{"key":"e_1_2_7_31_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.1c11659"},{"key":"e_1_2_7_32_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202510891"},{"key":"e_1_2_7_33_1","doi-asserted-by":"publisher","DOI":"10.1038\/nmat4360"},{"key":"e_1_2_7_34_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.202211893"},{"key":"e_1_2_7_35_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.mattod.2024.01.003"},{"key":"e_1_2_7_36_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202110547"},{"key":"e_1_2_7_37_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202218947"},{"key":"e_1_2_7_38_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.6b12124"},{"key":"e_1_2_7_39_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.accounts.8b00174"}],"container-title":["Advanced Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/adma.202514617","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/adma.202514617","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/adma.202514617","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T18:02:35Z","timestamp":1783015355000},"score":1,"resource":{"primary":{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/10.1002\/adma.202514617"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,11,26]]},"references-count":39,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2026,2]]}},"alternative-id":["10.1002\/adma.202514617"],"URL":"https:\/\/doi.org\/10.1002\/adma.202514617","archive":["Portico"],"relation":{},"ISSN":["0935-9648","1521-4095"],"issn-type":[{"value":"0935-9648","type":"print"},{"value":"1521-4095","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,11,26]]},"assertion":[{"value":"2025-07-29","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-11-26","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e14617"}}