Effects of plant carotenoid spacers on the performance of a dye-sensitized solar cell using a chlorophyll derivative: Enhancement of photocurrent determined by one electron-oxidation potential of each carotenoid

Dye-sensitized solar cells were fabricated by the use of PPB a as a sensitizer and a set of plant Cars with n = 8-11 as redox spacers. Electron transfer from Car to PPB a was proposed as the mechanism of enhancement in conversion efficiency by using an empirical equation.