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In this paper, a study on the electrochemical impedance of anodic decomposition of n-GaAs in 0.5 M sulfuric acid, combined with steady-state polarization techniques, is presented. Both dark and daylight conditions have been investigated for comparison of their influence on polarization curves and impedance by hole injection in a potential range from open circuit to breakdown. An inductive loop appears...
Corrosion of GaAs can readily happen in acidic and alkaline aqueous electrolytes. The instability of GaAs is a major difficulty in implementing GaAs-based photoelectrochemical solar energy-conversion systems. In this paper, the corrosion behavior was investigated by electrochemical methods and surface-analysis approaches, in both H 2 SO 4 and NH 3 ·H 2 O solutions....
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