| 摘要 |
PROBLEM TO BE SOLVED: To improve photoelectric transfer efficiency by providing a reflecting layer consisting of metal of high light reflectance in a surface of a conductive layer of an anode electrode. SOLUTION: This battery 1 is constituted by a cathode electrode 10, anode electrode 20 opposed thereto and an electrolyte 30. In the anode electrode 20, an optical electrode is constituted by forming a conductive layer 22 consisting of light permeable tin oxide provided in a surface of a glass 21, on its top provided reflecting layer 23 evaporating silver and on its top a pigment layer 27 consisting of ruthenium complex. A pigment has an absorbing function in a wavelength range of sunlight, an excitation condition is generated by irradiation of light. By a constitution thus formed, light passing without exciting the pigment of the pigment layer 27 is reflected by the reflecting layer 23, the light again passes in the pigment layer 27, so as to increased an effective light path length, a chance of irradiation to an interface of the pigment 27 and the electrolyte 30 is increased, photoelectric transfer efficiency can be improved. |
