A novel polymer quaternary ammonium iodide and application in quasi-solid-state dye-sensitized solar cells

The characteristics of electrolytes containing novel polymer quaternary ammonium iodide, polysiloxane with quaternary ammonium side groups (PSQAS), were investigated. PSQAS exhibits a single-anionic conductivity and has special advantages over usually used iodides in dye-sensitized solar cells. Electrolytes based on PSQAS exhibited the maximum ambient conductivity (25 °C) of 4.96 × 10−3 S cm−1. The polymer gel electrolyte based on PAN and PSQAS has been employed to fabricate quasi-solid-state dye-sensitized solar cell with an overall conversion efficiency of 2.67% at irradiation of 100 mW cm−2.