POTENTIODYNAMIC MEASUREMENTS AT SEMICONDUCTOR ELECTRODES. INDIUM ARSENIDE.

The electrochemical behavior and the electrophysical surface parameters of a narrow-band single-crystal InAs electrode have been studied over a wide range of pH and electrode potentials via the complex field effect in aqueous electrolytes (CFEE). For the first time it has been possible in an electrochemical system to demonstrate the effect of special features in the population (degeneracy of the electron-hole gas in the conduction and valence band) and distribution (nonparabolic shape of the conduction band, possible manifestation of a local maximum in the density of states in the valence band) of electronic states of the allowed bands in the semiconductor. It was found that the structural and chemical anisotropy along the left bracket 111 right bracket direction in InAs shows up in a variety of electrochemical and electrophysical characteristics of the InAs-electrolyte system.