## 5 Effect of Electrode Position  
Next, we considered the effect of different positions with a fix distance between the electrodes of the solar cell on the photovoltaics. In this section, we deal with the case without tension and compression for the wet-type MCF rubber solar cell. At first, we address the condition of short distance between the electrodes of the solar cell. Figure 16 shows the changes in the voltage and electric current density when ultraviolet light (227 Lux) was turned on and off. The MCF rubber was electrolytically polymerized with 0.22-g ruthenium complex dye on one side and 7.4-g KI + I\({}_{2}\) on the other. The MCF rubber had 4-g TiO\({}_{2}\), 6-g Ni, 4.5-g MF and 9-g NR-late. The production procedure, conditions and the size of the MCF rubber are the same as those described previously in Section 2. In the figure, \"Counterpart\" and \"Aloof\" refer to the different locations of the solar cell electrodes. The MCF rubber had an area of 16 mm \(\times\) 30 mm and was 1-mm thick. Both electrodes were 20 mm \(\times\) 10 mm. The irradiation light was ultraviolet (40 Lux). In this investigation, the voltage and electric current between the electrodes were measured. In the case of ordinary solid-type solar cells, the location of the electrodes is a counterpart to that of the material. Therefore, the photovoltaic reaction is along the thickness of the material. In contrast, to the MCF rubber solar cell, even if the electrodes are apart, the photovoltaic reaction occurs. Electrodes can thus be set anywhere. This is due to the mixture of the components of the MCF rubber and the conduction of electrons and holes in microscopic sections of the rubber among the isoprene molecule, Fe\({}_{3}\)O\({}_{4}\), and TiO\({}_{2}\) particles. Therefore, photo-excitation can be generated wherever the electrodes are set on the MCF rubber. This tendency was only recently reported in ordinary solar cells. The feasibility of this concept in MCF rubber solar cells depends on the solid-like rubber material produced by electrolytic polymerization. It is suitable for engineering applications of new types of solar cells, for example, the crooked and deformed solar cell with installed atwain electrodes. Next, we deal with the condition of long distance between electrodes of a solar cell with multiple electrodes as shown in Figure 17. Four 188-mT recombinant permanent magnets, which are the same as those in Figure 1, were applied to the 50 mm \(\times\) 240 mm MCF rubber under electrolytic polymerization at each of the positions 1-4. The MCF rubber had 2-g TiO\({}_{2}\), 6-g Ni, 4.5-g MF and 9-g NR-latex. The dark-colored mark shown in the figure are at the location of the applied magnets. Those may be  
Figure 16: Changes in voltage and electric current density under ultraviolet light on (indicated by red arrow) and off (indicated by blue arrow) by electrode location for wet-type MCF rubber solar cell electrolytically polymerized under a magnetic field with Ruthenium complexes dye and electrolyte KI + I\({}_{2}\): (**a**) voltage; (**b**) electric current density. the location of electrodes of solar cell. The production procedure, conditions and the size of the MCF rubber are the same as those described the previously in Section 2. A transparent glass (20 mm \(\times\) 30 mm) and a second one coated with TiO\({}_{2}\) were placed in contact with UC and LA respectively, as shown in Figure 17. KI + I\({}_{2}\) was deposited On UC 7.4-g, and ruthenium complex dye was deposited on LA 0.22-g. UC is connected as the anode of the solar cell, and LA as the cathode. Ultraviolet light was irradiated on LA (227 Lux). Figure 18 shows the photoelectricity and built-in electricity. The anode of the solar cell is fixed at position 1 while the cathode of the solar cell is changed from position 1 to position 4 as shown in the figure. Even if the distance between the electrodes of the solar cell increases, photoelectricity can be generated.