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Designed Suppression of Aggregation in Polypyrene: Toward High-Performance Blue-Light-Emitting Diodes



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A novel non-aggregating polypyrene, which can be synthesized via a simple three-step chemical route from pyrene in good yields, is presented. Poly-7-tert-butyl-1,3-pyrenylene shows a high solid-state fluorescence quantum yield with blue emission, excellent solubility and stability, no aggregation in thin films, and good electro-optical performance in single-layer organic light-emitting diodes (see figure).