Matches in SemOpenAlex for { <https://semopenalex.org/work/W4223932010> ?p ?o ?g. }
- W4223932010 abstract "Molecules that exhibit multiple resonance (MR) type thermally activated delayed fluorescence (TADF) are highly efficient electroluminescent materials with narrow emission spectra. Despite their importance in various applications, the emission mechanism is still controversial. Here, a comprehensive understanding of the mechanism for a representative MR-TADF molecule (5,9-diphenyl-5,9-diaza-13b-boranaphtho[3,2,1-de]anthracene, DABNA-1) is presented. Using the equation-of-motion coupled-cluster singles and doubles method and Fermi's golden rule, we quantitatively reproduced all rate constants relevant to the emission mechanism; prompt and delayed fluorescence, internal conversion (IC), intersystem crossing, and reverse intersystem crossing (RISC). In addition, the photoluminescence quantum yield and its prompt and delayed contributions were quantified by calculating the population kinetics of excited states and the transient photoluminescence decay curve. The calculations also revealed that TADF occurred via a stepwise process of 1) thermally activated IC from the electronically excited lowest triplet state T1 to the second-lowest triplet state T2, 2) RISC from T2 to the lowest excited singlet state S1, and 3) fluorescence from S1." @default.
- W4223932010 created "2022-04-19" @default.
- W4223932010 creator A5045297049 @default.
- W4223932010 creator A5052749272 @default.
- W4223932010 date "2022-04-14" @default.
- W4223932010 modified "2023-10-09" @default.
- W4223932010 title "Comprehensive understanding of multiple resonance thermally activated delayed fluorescence through quantum chemistry calculations" @default.
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- W4223932010 doi "https://doi.org/10.1038/s42004-022-00668-6" @default.
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