A dumbbell-like A-D-A molecule for single-component organic solar cells.

ABSTRACT

A dumbbell-like A-D-A molecule, triad 1, containing a dithienosilole-dibenzothiadiazole donor unit and two fullerene acceptor units was designed and synthesized. Triad 1 shows good solubility, thermostability, light absorbance, and film-forming capability. Solar cells using 1 as the active layer gave a PCE of 0.4%.