Figure shows lineshapes generated using the ensemble and implicit solvent FTFC approaches. Although the ensemble absorption spectral lineshape is too narrow compared to the experiment, the ensemble emission lineshape is twice as broad as absorption, nearing the experimental spectral width and giving a FWHM value of 0.445 eV, see Table . The difference in absorption and emission spectral width correlates to the standard deviation computed for the VEEs and VDEs.