抄録
Photogalvanic effect is studied by using ion-exchange membranes. Cation-and anion-exchange membranes with electro-chemical characteristics shown in a Table 2 are prepared and treated with thionine and ascorbic acid, respectively. These membranes are put one upon the other and illumi-nated from the side of the cation-exchange membrane with a collimated beam of white light from a 150-watt Xenon arc lamp. The initial photo-induced potential is positive, about 30 mV., which becomes gradually decreased by repeating the illumination with eventual reversal of the sign of potential and bleaching of the thionine dye. The reversed potential is detected repeatedly by further illumination. The system of thionine and ascorbic acid treated ion-exchange membranes rectifies the electric current.
