Photoelectrochemical hydrogen production using nanostructured [alpha]-Fe2O3 electrodes

Piers R. F. Barnes; Ian C. Plumb; Avi Bendavid; Phil J. Martin

doi:10.1117/12.678687

8 September 2006 Photoelectrochemical hydrogen production using nanostructured α-Fe₂O₃ electrodes

Piers R. F. Barnes, Ian C. Plumb, Avi Bendavid, Phil J. Martin

Proceedings Volume 6340, Solar Hydrogen and Nanotechnology; 63400N (2006) https://doi.org/10.1117/12.678687
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

We report the methodology and fabrication of α-Fe₂O₃ nanostructured photoelectrodes for water splitting applications. Thin films of α-Fe₂O₃ (hematite) were deposited onto nanostructured substrates (ZnO nanowires and TiO2 nanotubes) using filtered arc deposition (FAD). It is proposed that such nanostructured electrodes can overcome the poor absorption and high charge carrier recombination of planar α-Fe₂O₃ films used for water splitting. Results of the characterization and optimization of the α-Fe₂O₃ films and the nanostructured substrates are presented. The filtered arc deposition technique is shown to produce high purity α-Fe₂O₃ films. Results of preliminary studies of silicon doping of the hematite films are presented. The filtered arc deposition technique is shown to be suitable for coating highly structured substrates.

Citation Download Citation

Piers R. F. Barnes, Ian C. Plumb, Avi Bendavid, and Phil J. Martin "Photoelectrochemical hydrogen production using nanostructured α-Fe₂O₃ electrodes", Proc. SPIE 6340, Solar Hydrogen and Nanotechnology, 63400N (8 September 2006); https://doi.org/10.1117/12.678687

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