To provide semiconductor particulates used for a pigment sensitizing photoelectric conversion element which is superior in energy conversion efficiency and can be made larger in area and an optical electrochemical cell, by allowing an ester compound other than pigments to be adsorbed to a semiconductor.
A manufactured and color sensitized TiO2 electrode substrate is coupled with a platinum vopor-deposited glass which is as large as its size, and an electrolyte is impregnated between both glasses due to capillary phenomena, and then it is led into the TiO2 electrode, so as to obtain an optical electrochemical cell. A conductive glass 1 (a conductive agent layer 2 is formed on a glass), TiO2 layer 3, pigment layer 4, electrolyte 5, platinum layer 6, and glass 7 are laminated in sequence, to produce an optical electrochemical cell packaged with an epoxy-based sealing agent. The optical electrochemical cell is irradiated with an artificial solar light, and the electricity generated is measured by a current/voltage measuring device. As a result, a photoelectric conversion element of superior photoelectric conversion efficiency and an optical electrochemical cell can be obtained.
WATANABE TETSUYA
OKAZAKI MASAKI
