| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photoelectrochemical cell capable of generating power with higher quantum efficiency. <P>SOLUTION: A photoelectrochemical cell 100 comprises: a titanium oxide electrode 120 including a conductor 121, a titanium oxide layer (a rutile-type titanium oxide layer 122 and an anatase-type titanium oxide layer 123), and a chromophore layer 124 formed of chromophores adsorbed on a surface of the titanium oxide layer; a counter electrode 130; an electrolytic solution 140 including an electrolyte; and a container 110. In the titanium oxide layer, the ratio of the anatase-type titanium oxide present in the vicinity of the chromophore layer is greater than the ratio of the rutile-type titanium oxide present in the vicinity of the chromophore layer, and the ratio of the rutile-type titanium oxide present in the vicinity of the conductor is greater than the ratio of the anatase-type titanium oxide present in the vicinity of the conductor. On the basis of a vacuum level, the Fermi level in the vicinity of the conductor is greater than the Fermi level in the vicinity of the chromophore layer and the Fermi level of the conductor 121 is greater than the Fermi level in the vicinity of the conductor of the titanium oxide layer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
