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We developed a red fluorescent dye, Picket-fence (PF) Tetraphenyldibenzoperiflanthene (PF-DBP), to suppress aggregation-caused quenching. PF-DBP exhibited an 80% photoluminescence quantum yield in solution. In rubrene-based organic light-emitting diodes, its sharp emission spectrum delivered a 3.2-fold increase in electroluminescence intensity compared to conventional DBP.
R. Kani, Y. Majima and S. Izawa, J. Mater. Chem. C, 2026, Accepted Manuscript , DOI: 10.1039/D6TC01125J
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