CONCURRENT DISCHARGE AND IONIZATION OF HYDROGEN AND CADMIUM AT THE SURFACE OF CADMIUM SELENIDE

Voltammetry is used to show that adsorbed hydrogen is capable of accum ulating in noticeable quantities at the surface of electrodes made of single-crystal CdSe only in the presence of cadmium adatoms (metal in the first energy state) of structural defects. Specific features of co mplicated voltammograms that are recorded during a concurrent ionizati on or adsorbed hydrogen and cadmium adatoms at the CdSe surface are st udied. It is found that the corresponding maximums of the current can be separated better by selecting an optimum scan rate.