Photoelectrochemical cells consisting of phenosafranin-EDTA and different redox couples with illuminated semiconductor electrode

Abstract A photoelectrochemical cell, semiconductor (In 2 O 3 )/dye-EDTA//redox couple/Pt, has been developed using phenosafranin dye and EDTA aqueous solution in one compartment and Cu + /Cu 2+ , Fe(CN) 6 4− /Fe(CN) 6 3− , I − /I 2 , and Fe 2+ /Fe 3+ in the other compartment of an H-shaped cell separated by a glass membrane. All the cell characteristics such as open-circuit voltage, short-circuit current, fill factor, power efficiency, and solar energy efficiency have been determined. There is 2-3-fold increase of efficiency of the cell compared to the same cell with illuminated Pt electrode.