The effect of various swelling solvents for anion exchange memchange membranes ion-exchanged with methyl viologen branes having a viologen moiety as the anion exchange groups on generated a photovoltage and photocurrent when the memphotovoltage was examined to obtain a high photovoltage and to brane was irradiated with a xenon lamp from one side after clarify the mechanism of charge transfer. Anion exchange membeing swelled with ethylene glycol, clamped, and then sealed branes having a viologen moiety, based on a copolymer membrane between two ITO electrodes (7). Similarly, anion exchange of chloromethylstyrene and divinylbenzene and a film of chloromembranes having a viologen moiety as the anion exchange methylated polysulfone, were swelled with various solvents, and group, which were swelled with ethylene glycol, generate a clamped between two ITO electrodes (indium-tin oxide elecphotovoltage because an electron released by photoreduction trodes), and a xenon lamp irradiated the membrane from one side. In general, the solvents that swelled the membranes well of the viologen moiety in the membranes migrates through and provided a high photovoltage included ethylene glycols, 1,3a load resistance and reduces the viologen moiety of the dioxolane, 1,3-dioxane, and 1-methyl-2-pyrrolidone. Especially, membranes, ethylene glycol or chloride ions on the dark the membrane swelled with 1,3-dioxolane generated a high photoside (7). The generation of the photovoltage from the anion voltage. It is thought from these results that methylene groups exchange membrane is a new phenomenon and might lead to neighboring oxygen and between two oxygens, which is an electron a new application of the ion exchange membranes. However, acceptor, are related to the charge transfer in the system. When because the generation of the photovoltage was very slow the cell was assembled by sandwiching a cation exchange memduring photo-irradiation, various kinds of anion exchange brane (as a separator) between two anion exchange membranes membranes with a viologen moiety were prepared and examwith a viologen moiety, the photovoltage significantly decreased ined in order to increase the level and speed of the photovoltwith an increase in repeat time of the irradiation and interruption.
On the other hand, the voltage of the cell having of an anion age generation; anion exchange membranes prepared from exchange membrane separator did not significantly decrease with copolymer membranes of chloromethylstyrene and divinylthe same procedure. When non-ion-exchanged chloride ions were benzene with a different crosslinking and 4,4-bipyridine, added to the cell, the generation of the photovoltage became high and anion exchange membranes prepared from chloromethcompared to the cell without the ions. It was concluded from these ylated polysulfone and 4,4-bipyridine (8). Consequently, it results that chloride ions also play an important role in the charge became clear that the amount of ethylene glycol in the memtransfer in the cell.