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Herein, we fuse two 3,6\u2010dimethyl\u20108H\u2010indolo[3,2,1\u2010\n                    <jats:italic>de<\/jats:italic>\n                    ]acridine (IAc) donor units to obtain large planar donors (\n                    <jats:italic>m<\/jats:italic>\n                    \u2010bIAc and\n                    <jats:italic>p<\/jats:italic>\n                    \u2010bIAc) for forming spatially folded A\u2013D|D\u2013A configured TSCT emitters (DCT\u20101 and DCT\u20102). The configuration of highly parallel and large\u2010plane intramolecular multiple \u03c0\u2010stacking has been achieved. The symmetrical multi\u2010channel charge transfer networks of emitters induce multiple energetically proximal excited states within a small energy range (&lt;0.12\u00a0eV) at the lowest excited state, creating additional configuration interaction and spin\u2010orbit coupling channels to accelerate the RISC process. This molecular configuration yields enhanced RISC rates of 6.19\u00a0\u00d7\u00a010\n                    <jats:sup>5<\/jats:sup>\n                    \u00a0s\n                    <jats:sup>\u22121<\/jats:sup>\n                    for DCT\u20101 and 1.05\u00a0\u00d7\u00a010\n                    <jats:sup>6<\/jats:sup>\n                    s\n                    <jats:sup>\u22121<\/jats:sup>\n                    for DCT\u20102. Solution\u2010processed organic light\u2010emitting diodes employing these emitters achieve maximum external quantum efficiencies of 18.9% (DCT\u20101, 474\u00a0nm sky\u2010blue emission) and 23.9% (DCT\u20102, 498\u00a0nm green emission), with attenuated efficiency roll\u2010offs of DCT\u20102 (12% at 1000\u00a0cd m\n                    <jats:sup>\u22122<\/jats:sup>\n                    ). This work provides a critical pathway for manipulating dense excited states to address the bottleneck of the RISC rates while maintaining structural rigidity, promoting further advancement of TSCT\u2010TADF materials.\n                  <\/jats:p>","DOI":"10.1002\/anie.202506654","type":"journal-article","created":{"date-parts":[[2025,4,15]],"date-time":"2025-04-15T22:04:11Z","timestamp":1744754651000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Fused Dual\u2010Donor Design for Accelerating Reverse Intersystem Crossing Rates of Spatially Folded Through\u2010Space Charge Transfer Emitters"],"prefix":"10.1002","volume":"64","author":[{"given":"Quanwei","family":"Li","sequence":"first","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology  Beijing 100029 P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haisong","family":"Zhao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology  Beijing 100029 P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maoqiu","family":"Li","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology  Beijing 100029 P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuchao","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Rubber\u2010Plastics Ministry of Education Qingdao University of Science &amp; Technology  Qingdao 266042 P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shouke","family":"Yan","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology  Beijing 100029 P.R. China"},{"name":"Key Laboratory of Rubber\u2010Plastics Ministry of Education Qingdao University of Science &amp; Technology  Qingdao 266042 P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhongjie","family":"Ren","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology  Beijing 100029 P.R. 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