Adsorption and Photovoltaic Properties of Lac-Color on TiO₂ for Dye-Sensitized Solar Cells.

The adsorption and photovoltaic characteristics of Lac-color on TiO2 thin film for dye-sensitized solar cells were investigated. The adsorption isotherms of Lac-color on TiO2 thin film could be represented by the Langmuir equation. The adsorption capacity of Lac-color on TiO2 thin film increased with increasing temperature. The photovoltaic conversion efficiencies of Lac-color increased with increasing amount of dye adsorbed on TiO2 photo electrode. The energy conversion efficiency of Lac-color was 0.12%.