A self-driven p/n-Fe2O3 tandem photoelectrochemical cell for water splitting

It is desirable to fabricate self-driven photoelectrochemical cells (PECs) utilizing low cost, low bandgap, and stable materials for efficient splitting of water into hydrogen. We report here the spray pyrolytically fabricated self-driven tandem p/n-Fe2O3 PECs for photoelectrochemical water splitting. The combination of p-Fe2O3 synthesized by zinc doping using ethanol as the spray solvent and the undoped n-Fe2O3 synthesized using 1-pentanol as the spray solvent generated the self-driven photoelectrochemical cell for water splitting. (c) 2006 The Electrochemical Society.