A red to blue series of push-pull dyes for NiO based p-DSSCs

作者：Brisse R; Praveen C; Maffeis V; Bourgeteau T; Tondelier D; Berthelot T; Geffroy B; Gustavsson T; Raimundo J M; Jousselme B^*

来源：Sustainable Energy and Fuels, 2018, 2(3): 648-654.

DOI：10.1039/c7se00474e

Finding efficient dyes for NiO photocathodes either for inverse or tandem DSSCs is essential to developing these promising low-cost solar cells. This paper reports the design, synthesis and physical property characterization of four new triphenylamine-bithiophene push-pull dyes with acceptors of increasing electronic affinity, in order to shift their absorption to the red region of the visible spectrum. The dyes were tested in a p-type DSSC configuration with 850 nm NiO ink-jet printed photocathodes and their performances were compared with that of the reference dye P1. With an iodine electrolyte, one of the dyes, possessing a 1,3-diethyl-2-thiobarbituric acceptor, shows superior performance to P1, with PCE reaching 0.124% and a J(SC) of 4.32 mA cm(-2).

• 出版日期2018-3-1
• 单位中国地震局