biostudies-literatureYang GDepartment of Education of Guangdong Province (Guangdong Province Education Department)Natural Science Foundation of Guangdong Province (Guangdong Natural Science Foundation)National Natural Science Foundation of China (National Science Foundation of China)8927https://www.ebi.ac.uk/biostudies/studies/S-EPMC12508134biostudies-literatureUnknown16(1)Research on multifunctional luminescent materials is highly intriguing due to their wide-ranging applications in display technology, data security, and bioimaging. Nonetheless, achieving dual-mode delayed luminescence materials that simultaneously integrate thermally activated delayed fluorescence (TADF) and organic room-temperature phosphorescence (RTP) using pure organic small molecule remains a significant challenge. Herein, we report a host-guest system composed of polyaromatic hydrocarbons (PAHs) as guest emitters embedded within a benzophenone (BP) matrix, which successfully realizes efficient dual emission of TADF and RTP. The charge-transfer (CT) state functions as an "energy redistribution hub", playing a critical role in promoting both reverse intersystem crossing (RISC) and inteNature communicationsIntermolecular charge transfer as an excited-state modulator for dual delayed luminescence in doping systems.PMC125081342021LSYS0092023B1212120011222730572022A1515011661, 2023A151501263122173055Yang GYuan WZDang LZhang ZLi MDHao SfalseIntermolecular charge transfer as an excited-state modulator for dual delayed luminescence in doping systems.Research on multifunctional luminescent materials is highly intriguing due to their wide-ranging applications in display technology, data security, and bioimaging. Nonetheless, achieving dual-mode delayed luminescence materials that simultaneously integrate thermally activated delayed fluorescence (TADF) and organic room-temperature phosphorescence (RTP) using pure organic small molecule remains a significant challenge. Herein, we report a host-guest system composed of polyaromatic hydrocarbons (PAHs) as guest emitters embedded within a benzophenone (BP) matrix, which successfully realizes efficient dual emission of TADF and RTP. The charge-transfer (CT) state functions as an "energy redistribution hub", playing a critical role in promoting both reverse intersystem crossing (RISC) and inte2025-01-01T00:00:00Z2025 Oct2026-06-04T07:02:18.684Z2026-05-06T03:13:22.31ZS-EPMC125081344106247610.1038/s41467-025-62129-7