Synthesis and performance of new quinoxaline-based dyes for dye sensitized solar cell

• Quinoxaline moiety was used as electron withdrawing group.
• Triphenylamine and phenothiazine derivatives bearing alkoxy groups showed enhanced electron donating ability.
• Solar cell based on synthesized dyes showed the high incident photon to current conversion efficiency value.

New quinoxaline-based dyes were synthesized and applied as a sensitizer for dye-sensitized solar cell. A quinoxaline moiety was used as an electron withdrawing group and triphenylamine and phenothiazine derivatives were introduced as electron donating groups. The dyes synthesized with the phenothiazine moiety showed greater conversion efficiency than dyes with the triphenylamine moiety leading to the best overall power conversion efficiency of 4.36%.

Figure optionsDownload as PowerPoint slide