| abstract |
The invention discloses a diketopyrrolopyrrole dye and an application thereof. The present invention uses 4,4'-dihexyloxytriphenylamine as the electron donor, diketopyrrolopyrrole as the π bridge, cyanoacetic acid as the electron acceptor and anchoring group, and diketopyrrolopyrrole A series of pure organic dyes based on diketopyrrolopyrrole were synthesized by introducing alkyl chain on the group. This type of dye has good light-harvesting performance, large steric hindrance, and is not easy to aggregate when adsorbed on the semiconductor film. Pure organic dyes with diketopyrrolopyrrole as the electron π bridge are used in dye-sensitized solar cells. It has good ability to inhibit electron recombination, and the photoelectric conversion efficiency of dye-sensitized solar cells is high. |