Abstract
The anodic oxidation of indium phosphide has been investigated using ellipsometric measurements. The in situmeasurements revealed a two‐layer system: an outer indium‐rich oxide layer and, close to the substrate, a phosphorus‐rich oxide layer. This two‐layer composition was obtained with different electrolytes: a complex glycol‐based solution and pure water. Considering these experimental results, a tentative explanation for the oxidation mechanism is proposed. The oxide growth is controlled by the drift of ionic species under the electric field. The anodic efficiency, which is defined as the ratio of ionic charge to total charge, is dependent on the barrier height at the electrolyte/oxide interface. Therefore the reduction of the growth rate as the oxidation proceeds is explained by the change in the surface composition.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
