No abstract

006ChemInform Abstract The photoelectrochemical properties of synthetic diamond are investigated for the first time by measurements of the photocurrent, differential capacity, and dark current vs. potential characteristics of thin-film polycrystalline diamond electrodes on a tungsten substrate in contact with aqueous electrolyte solutions. To a first approximation, this behavior can be described using the mechanism of photogeneration by light of the minority carriers in the semiconductor and their movements in the space-charge field towards the surface. The flat-band potential is measured, and its dependence on the electrochemical pretreatment of diamond and on the solution composition is observed. The results obtained indicate surface effects to play an important role in the electrochemical behavior of semiconductor diamond.

No abstract

No abstract

No abstract