Fig. 2: Optoelectronic properties of rylene dimide in dilute solutions.
From: Stepwise π-extension of double [5]helicene diimides to planar nanographene diimides

a Absorption spectra of S-NMI (cyan), C-PMI (green) and DB-TDI (orange) recorded in degassed chloroform. b Fluorescence spectra of S-NMI (λexc = 380, cyan), C-PMI (λexc = 464, green) and DB-TDI (λexc = 540, orange) in degassed chloroform at room temperature.