Optical properties of biphenyl difluoroboron β-diketonates were studied in poly(lactic acid) (PLA) blends. Increased conjugation lowered the emission energy, decreased the singlet–triplet energy gap and yielded blue thermally activated delayed fluorescence (TADF). The properties of these biphenyl dyes may inform organic light emitting diode (OLED) and bioimaging agent design.
M. L. Daly, C. A. DeRosa, C. Kerr, W. A. Morris and C. L. Fraser, RSC Adv., 2016, 6, 81631 DOI: 10.1039/C6RA18374C
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