Proximal Steric Shielding Unlocks High Solid-State Luminescence in Quinoxaline-Fused Pyrene Heteroacenes.
Achieving high quantum yields in neat films of extended heteroacenes remains challenging because their large aromatic surfaces promote aggregation-caused quenching (ACQ) and non-radiative decay, while often limiting solubility and solution processability. Here we introduce proximal steric shielding to control solid-sta...