{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T04:17:38Z","timestamp":1787890658304,"version":"build-2784847793"},"reference-count":58,"publisher":"Wiley","issue":"16","license":[{"start":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T00:00:00Z","timestamp":1787616000000},"content-version":"vor","delay-in-days":24,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001412","name":"Council of Scientific and Industrial Research, India","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001412","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007780","name":"Indian Institute of Science","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100007780","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001411","name":"Indian Council of Medical Research","doi-asserted-by":"publisher","award":["IRPSG\u20102024\u201001\u201002893"],"award-info":[{"award-number":["IRPSG\u20102024\u201001\u201002893"]}],"id":[{"id":"10.13039\/501100001411","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100013391","name":"Ministry of Education and Human Resources Development","doi-asserted-by":"publisher","award":["MoE\u2010STARS\/STARS\u20102\/2023\u20100651"],"award-info":[{"award-number":["MoE\u2010STARS\/STARS\u20102\/2023\u20100651"]}],"id":[{"id":"10.13039\/501100013391","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["aces.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry \u0097 An Asian Journal"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    For next\u2010generation organic light\u2010emitting diode (OLED) displays and lighting, achieving stable, efficient deep\u2010blue and sky\u2010blue emission remains a challenge. Herein, we report a cyanopyridine\u2010based modular scaffold, an\u00a0asymmetric dual core (2tCz2PyCN)\u00a0that suppresses exciton loss to achieve sky\u2010blue emission, and an asymmetric\u00a0single core analog (2tCzPyCN). The single core 2tCzPyCN exhibits deep blue emission (\n                    <jats:italic>\u03bb<\/jats:italic>\n                    <jats:sub>max<\/jats:sub>\n                    = 437\u00a0nm) with a CIE of (0.15, 0.14), asymmetric 2tCz2PyCN emitter exhibits sky\u2010blue emission (\n                    <jats:italic>\u03bb<\/jats:italic>\n                    <jats:sub>max<\/jats:sub>\n                    = 478\u00a0nm) with a CIE of (0.19, 0.38). The reduced conjugation in the single core 2tCzPyCN widens the energy gap, resulting in deep\u2010blue color (CIE\n                    <jats:italic>\n                      <jats:sub>y<\/jats:sub>\n                    <\/jats:italic>\n                    = 0.14), it also maximizes faster reverse intersystem crossing (RISC) through spin orbit coupling (SOC). The extended bipyridine core of 2tCz2PyCN lowers the excited state reorganization energy (0.82\u00a0vs. 0.94\u00a0eV), suppressing non\u2010radiative decay and raising the PLQY from 41.6% to 80.7%. The 2tCzPyCN\u2010based device achieves an EQE\n                    <jats:sub>max<\/jats:sub>\n                    of 8.80% in the deep blue region, whereas the asymmetric 2tCz2PyCN shows EQE\n                    <jats:sub>max<\/jats:sub>\n                    of 16.63% in the sky\u2010blue region. This work demonstrates that engineering the excited state via an asymmetric acceptor is a practical pathway for color tuning and developing efficient TADF emitters.\n                  <\/jats:p>","DOI":"10.1002\/asia.70956","type":"journal-article","created":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T05:03:17Z","timestamp":1787720597000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Tuning the Acceptor Core in Cyano PyridineBased Framework to Realize Efficient TADF Emitters"],"prefix":"10.1002","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6627-0108","authenticated-orcid":false,"given":"Ashish K.","family":"Mazumdar","sequence":"first","affiliation":[{"name":"Materials Research Centre Indian Institute of Science  Bengaluru Karnataka 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