PHOTOELECTROCHEMICAL ELECTRODE AND PHOTOELECTROCHMICAL TREATMENT METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a photoelectrochmical electrode used in a photoelectrochemical reaction cell and an efficient photoelectrochemical treatment method.

SOLUTION: The photoelectrochemical electrode 11 comprises a translucent base material 12, a semiconductor optical absorption layer 14 arranged on the translucent base material and absorbing visible light and a catalytic component 17 arranged on the surface of the semiconductor optical absorption layer. The content of an impurity element added to control conductivity of the semiconductor optical absorption layer 14 is not uniform in the thickness direction of the semiconductor optical absorption layer 14 and the concentration on the side being in contact with the catalytic component is lower than that on the side being in contact with the translucent base material 12.

COPYRIGHT: (C)2011,JPO&INPIT