Preparation and Characterization of Squaraine Dyes containing Mono- and Bis-Anchoring Groups as the Light Absorber in Dye Sensitized Solar Cells

- We aim to enhance charge transfer between squaraine dyes (SQ) and TiO2.
- Smaller amounts of SSQ dye is loaded on the TiO2 than the USQ dye.
- SSQ shows better electronic coupling with TiO2 than USQ.
- The enhanced electronic coupling leads SSQ to show better photovoltaic performance.