Fig. 3: Optical properties of F8BT:l-P6(THS) blends in solid-state thin films.
From: Towards efficient near-infrared fluorescent organic light-emitting diodes
a Absorption spectra of F8BT:l-P6(THS) blend thin films at different hexamer concentrations and b relative PL spectra normalized with respect to the intensity of emission at 875 nm (at 545 nm for the neat F8BT film). The inset in a highlights the evolution of the QX l-P6(THS) absorption with increasing hexamer concentration. b The relative PLQY values (measured over the whole emission spectrum) are reported in the legend, together with the fraction of NIR emission (%NIR)
