摘要：AbstractThree novel organic dyes coded asFHD4‐1,FHD4‐2, andFHD4‐3featuring spiro[dibenzo[3,4:6,7]cyclohepta[1,2‐b]quinoxaline‐10,9′‐fluorene] (SDBQX) moieties are designed to inhibit dye aggregation to improve the performance of dye‐sensitized solar cells (DSSCs). The consistent absorption onsets ofFHD4‐1,FHD4‐2, andFHD4‐3in solutions and adsorbed on TiO2films indicate that these dyes are aggregation‐free dyes. Therefore, coadsorption with chenodeoxycholic acid (CDCA) of these three dyes reduces the performance of DSSCs because no inhibition effect for dye aggregation is needed, but, on the contrary, the dye loading amount is reduced after addition of CDCA.Three novel organic dyes featuring spiro[dibenzo[3,4:6,7]cyclohepta[1,2‐b]quinoxaline‐10,9′‐fluorene] (SDBQX) moietiesare designed to inhibit dye aggregation. Their consistent absorption onsets in solutions and adsorbed on TiO2films indicate that these dyes are aggregation‐free. Coadsorption with chenodeoxycholic acid (CDCA) reduces the performance because no inhibition effect for dye aggregation is needed but the dye loading amount is reduced after addition of CDCA.
关键词：aggregation‐freechenodeoxycholic aciddye‐sensitized solar cellsorganic dyes
