Figure 2
From: Prediction of Absorption Spectrum Shifts in Dyes Adsorbed on Titania
Nature of the spectral shift based on the positions of the absorption peaks corresponding to the solution phase (\({\lambda }_{{\rm{\max }}}^{{\rm{soln}}}\)) and solid-state maxima (\({\lambda }_{{\rm{\max }}}^{{{\rm{TiO}}}_{2}}\)). The difference between the two values: \(\Delta \lambda ={\lambda }_{{\rm{\max }}}^{{\rm{soln}}}-{\lambda }_{{\rm{\max }}}^{{{\rm{TiO}}}_{2}}\) is used to determine whether there is a blue shift, red shift or no change upon adsorption.
