Fig. 1: Fundamental PL properties of TPA-DCPP-based solid-state films.
From: Slow recombination of spontaneously dissociated organic fluorophore excitons
a Concentration dependence of PLQY in TPA-DCPP:CBP blends. The error bars are estimated by taking into account of instrument accuracy and experimental variability. Inset: chemical structure of TPA-DCPP. b TRPL profiles in TPA-DCPP:CBP blends with different TPA-DCPP doping concentration. The black line indicates the instrument response function (IRF) of the fluorescence lifetime spectrometer used for the measurements. c Dependence of TRPL profile on excitation pulse width for a 50-wt%-TPA-DCPP:CBP blend. A 470-nm light source was used as excitation light, and the power density was fixed at 25 mW cm−2. The lifetime of the long-tailed component saturated for pulses longer than width of 375 µs.
