Back to results
US 4,734,168 AGranted
Method of making n-silicon electrodes
AssigneeTexas A&M University
InventorsJohn O'M. Bockris, Marek Szklarczyk, Aliasgar Q. Contractor
Life of this patent
Estimating the term…
Abstract
The photoelectrolysis of water by solar radiation to produce hydrogen and oxygen is achieved using semiconductor electrodes. The cell comprises a p-silicon wafer treated with catalyst as photocathode and metal doped n-silicon wafer as photoanode. The cell is operated at a small bias potential.
Claims6
The method of preparing an improved photoanode comprising;
- depositing a dopant agent selected from the group consisting of platinum, palladium, nickel, cobalt, gold, rhodium, ruthenium and tellurium in island form onto at least one surface of an n-silicon body;
- forming a layer of silicon dioxide on said one surface of said body;
- and
- dispersing the dopant into said silicon dioxide layer to thereby render the layer electrically conductive.
1 more element
The method of preparing an improved photoanode comprising:
- depositing platinum in island form onto at least one surface of an n-silicon body;
- forming a layer of silicon dioxide on said surface of said n-silicon body;
- and
- dispersing said platinum into said silicon dioxide layer to thereby render said silicon dioxide layer electrically conductive.
1 more element
Dependencies are inferred from the claim text.