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 (ISC), the open-circuit photo-voltage (VOC), 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%.