Dye-sensitized Solar Cell with the Electrode of Chlorophyll Derivative Adsorbed on Titanium Dioxide Film

Abstract

A dye-sensitized solar cell using a chlorine-e₆ (Chl-e₆) derived from chlorophyll-α, as visible and near-infrared sensitizer for nanocrystalline TiO₂ films was developed. The short-circuit photocurrent density (I_SC), the open-circuit photo-voltage (V_OC), and the fill factor (FF) of solar cell using Chl-e₆ adsorbed on nanocrystalline TiO₂ film electrode were estimated to be 0.305 ± 0.012 mA cm⁻², 426 ± 10 mV, and 45.0%, respectively. The overall photoenergy conversion efficiency (η) was 0.73%.