The effect of torsion-inducing methyl substituents on the delayed luminescence of star-shaped emitters

Key Points

• This research examines how methyl groups attached to donor-acceptor systems influence their luminescence properties.
• Analyzed the structure and electronic properties of phenylene-linked carbazole and triazine compounds.
• Compared the effects of meta- and para-conjugation on luminescence behavior.
• Investigated the role of torsion-enhancing methyl substituents in thermally activated delayed fluorescence.
• Found that the type of conjugation significantly alters luminescence characteristics.
• Meta-conjugation led to enhanced delayed fluorescence compared to para-conjugation.
• Methyl group substitutions influenced the torsional dynamics of the emitters.