An embodiment of the invention pertains to a method of making an electrode which comprises a WO3 film, the method comprising the steps of: (a) forming a colloidal solution of a mixture of tungstic acid and at least one organic material, (b) ultrasonically stirring said colloidal solution; (c) applying a layer of sai...

A photo electro chemical system for the cleavage of an electrolyte into hydrogen by light, the system comprising: a photoelectrochemical device that comprises first and second electrically connected cells, said first cell including a photoactive electrode that is operable when in contact with said electrolyte to abs...