ANALYSIS OF CURRENT POTENTIAL CHARACTERISTICS AT N-TYPE AND P-TYPE SEMICONDUCTOR ELECTRODES

The kinetics of charge transfer processes at semiconductor electrodes have been investigated by quantitative evaluation of current-potential curves. Studies of various redox reactions have shown that these proc esses can be kinetically or diffusion controlled depending on the rela tive position of standard potential of the redox system and the corres ponding energy band of the semiconductor. The quasi-Fermi level concep t has been applied to compare quantitatively majority carrier processe s at n-type electrodes.