Intermolecular charge transfer as an excited-state modulator for dual delayed luminescence in doping systems.

ABSTRACT: 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 inte

SUBMITTER: Yang G 

PROVIDER: S-EPMC12508134 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature