Thin, electrochemically grown oxide films on polycrystalline metals have semiconducting properties that may be investigated by photoelectrochemical techniques; Laser spot scanning can be used to generate photocurrent images or maps that identify the local character of the films, with a resolution of about 1 micron. It has been found that the properties of the films may be different on individual grains of the metal, often having epitaxial ordering relationships with the substrate.
Subject
Films,
Substrates,
Oxides,
Imaging,
Oxide films,
Metal oxides,
Titanium oxide,
Density,
Oxide surfaces,
Metals,
Crystal growth,
Coating defects,
Grain
National Association of Corrosion Engineers
1990
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