Investigation on the influence of co-sensitization on semi-transparent DSSCs fabricated using NIR-sensitive squaraine dyes and visible dyes.

ABSTRACT: Two squaraine dyes ("blue colored" SQ258 and "green colored" SQ259) active in the near-infrared spectral range were co-sensitized with popular commercial dyes (D35 and N719) and their photophysical characterizations were performed using stationary and time-resolved spectroscopic techniques. The dye mixtures, D35:SQ258 and N719:SQ259 demonstrated a better photovoltaic performance when compared with their individual photovoltaic efficiencies. The studied different DSSC configurations using squaraine dyes and mixtures in the devices with thin TiO₂ layer show the potential application in multi-color semi-transparent cells. The D35:SQ258 system was also evaluated in the presence of cobalt-based redox shuttle, revealing improved performance compared to I^-/I₃

SUBMITTER: Izyan N 

PROVIDER: S-EPMC11861276 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature