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Here, we report an innovative chiral host engineering strategy featuring through\u2010space coupling (TSC) skeletons for sensitizing achiral multi\u2010resonance thermally activated delayed fluorescence (MR\u2010TADF) luminogens, which facilitates efficient chiral transfer and superior electroluminescence (EL) performance to resolve the above tradeoff. Two couples of TSC chiral hosts,\n                    <jats:bold>\n                      (\n                      <jats:italic>R<\/jats:italic>\n                      \/\n                      <jats:italic>S<\/jats:italic>\n                      )\u2010BNM\u20102T\n                    <\/jats:bold>\n                    and\n                    <jats:bold>\n                      (\n                      <jats:italic>R<\/jats:italic>\n                      \/\n                      <jats:italic>S<\/jats:italic>\n                      )\u2010BNM\u2010AT\n                    <\/jats:bold>\n                    , were constructed by connecting (\n                    <jats:italic>R<\/jats:italic>\n                    \/\n                    <jats:italic>S<\/jats:italic>\n                    )\u2010binaphthylamine moieties acting as donors and chiral core to diphenyltriazine acceptors of different quantities, avoiding the demand for enantiomeric resolution. These TSC chromophores display intense circularly polarized luminescence, high photoluminescence quantum yields, and efficient exciton harvesting enabled by rapid high\u2010level reverse intersystem crossing. Non\u2010doped CP\u2010OLEDs based on\n                    <jats:bold>\n                      (\n                      <jats:italic>R<\/jats:italic>\n                      \/\n                      <jats:italic>S<\/jats:italic>\n                      )\u2010BNM\u20102T\n                    <\/jats:bold>\n                    showed EL dissymmetry factors (\n                    <jats:italic>g<\/jats:italic>\n                    <jats:sub>EL<\/jats:sub>\n                    ) of +7.60\u00a0\u00d7\u00a010\n                    <jats:sup>\u22123<\/jats:sup>\n                    and \u22126.73\u00a0\u00d7\u00a010\n                    <jats:sup>\u22123<\/jats:sup>\n                    at 450\u00a0nm. However, using\n                    <jats:bold>\n                      (\n                      <jats:italic>R<\/jats:italic>\n                      \/\n                      <jats:italic>S<\/jats:italic>\n                      )\u2010BNM\u20102T\n                    <\/jats:bold>\n                    as the host to sensitize achiral MR\u2010TADF emitter (\n                    <jats:bold>BN2<\/jats:bold>\n                    ), the resulting devices yielded comparatively high\n                    <jats:italic>g<\/jats:italic>\n                    <jats:sub>EL<\/jats:sub>\n                    values up to +1.17\u00a0\u00d7\u00a010\n                    <jats:sup>\u22122<\/jats:sup>\n                    and \u22121.06\u00a0\u00d7\u00a010\n                    <jats:sup>\u22122<\/jats:sup>\n                    , accompanied by maximum external quantum efficiency over 21%, suppressed efficiency roll\u2010off, and narrowband emission.\n                  <\/jats:p>","DOI":"10.1002\/anie.7243525","type":"journal-article","created":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T03:45:43Z","timestamp":1788925543000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Through\u2010Space Coupling Hosts Enhanced Circularly Polarized Electroluminescence Efficiency and Dissymmetry Factor via Sensitizing Strategy"],"prefix":"10.1002","volume":"65","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4145-4469","authenticated-orcid":false,"given":"Yingxiao","family":"Mu","sequence":"first","affiliation":[{"name":"School of Chemical Engineering and Light Industry Guangdong University of Technology  Guangzhou P. 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