Cobalt-doped titanium dioxide film

特許 係属中 PROBLEM TO BE SOLVED: To provided a cobalt-doped titanium dioxide film the electric/magnetic/optical properties of which can be controlled freely by light irradiation. ; SOLUTION: The light irradiation-type cobalt-doped titanium dioxide film is characterized in that the electric/magnetic/optical properties of the cobalt-doped titanium dioxide film are changed by light irradiation.