Fig. 2: Optical properties and chiral optical properties.

a FL spectra of the blend films doping PyBO in matrix material PMMA (wt % of PyBO from 1 to 95%) and PyBO neat film (λex = 330 nm); b The fluorescence decay of the blend film doping 25 wt% PyBO in PMMA (λem = 460 nm) and PyBO neat film (λem = 500 nm); c CD spectra and d CPL spectra of chiral co-assemblies R/S-M-PyBO at different molar ratios (λex = 330 nm). All spin-coated films from toluene solutions (10 mg/mL) on quartz plates (1 cm × 3 cm) (1000 N/s, 30 s).