Thermally activated delayed fluorescence in a mechanically soft charge-transfer complex: role of the locally excited state.

ABSTRACT: Molecular design for thermally activated delayed fluorescence (TADF) necessitates precise molecular geometric requirements along with definite electronic states to ensure high intersystem crossing (ISC) rate and photoluminescence quantum yield (PLQY). Achieving all these requirements synchronously while maintaining ease of synthesis and scalability is still challenging. To circumvent this, our strategy of combining a crystal engineering approach with basic molecular quantum mechanical principles appears promising. A holistic, non-covalent approach for achieving efficient TADF in crystalline materials with distinct mechanical properties is highlighted here. Charge transfer (CT) co-crystals of two carbazole-derived donors (ETC and DTBC) with an acceptor (TFDCNB) molecule are elaborated as a

SUBMITTER: Kalita KJ 

PROVIDER: S-EPMC10699582 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature