## 1 Introduction  
The problem of global energy consumption is being addressed in order to resolve the continuously ascending consumption of energy that boosts global warming and acid rain. Therefore, solar cells are receiving remarkable attention as a renewable energy technology. Organic solar cells have become expectable, including various types structured with organic or inorganic materials [1; 2; 3] or with organic or inorganic materials including liquids [4] such as ionic liquid [5; 6; 7; 8; 9; 10] and dielectric liquid [11]. Above all, dye-sensitized solar cells (DSSCs) [12; 13] such as Gratzel-type solar cells [14] and Perovskite-type solar cells [15] are well known to be lightweight low-cost cells. These organic solar cells are viable materials in the creation of flexible engineering instruments that lead to wearable and portable electronic devices, as opposed to rigid-type solar cells made of solid semiconductors such as silicon and metal glass. The wearable and portable devices may include self-powered supply or health monitors [16] and electronic devices embedded in clothes, watches, or glasses [17]. In order to achieve flexibility, not only polymers [18; 19; 20; 21; 22] but also thin films [23; 24] have been commonly utilized, and fibers [25; 26], cloth, or textiles [27] through which electrolytes or dye may be percolated have been proposed. The utilization of rubber is another effective method. However, there have been few studies on the use of rubber, and investigations of silicone rubber (Q) sheets are rare [28; 29]. Q in solar cells has been utilized as a substrate of layered materials for photovoltaics, in which case it is not metamorphosed to bring about the photovoltaics [28]. Neither the effects of tension and compression on photovoltaic properties nor experimental data on their correlation have been elucidated [29], due in large part to the lack of clarity regarding the chemical-photovoltaic mechanism and the lack of a high-efficiency profile. In contrast, [PERSON] proposed suitable solar cells made of rubber involving DSSCs and addressed the cardinal chemical-photovoltaic mechanism [30; 31; 32; 33]. By applying a magnetic compound fluid (MCF), which is a magnetic-responsive fluid compound with 10 nm sphere magnetite (Fe\({}_{3}\)O\({}_{4}\)) particles coated with oleic acid and 1 \(\upmu\)m metal particles such as Ni or Fe to the rubber, and with electrolytic polymerization under the application of a magnetic field, the MCF rubber is solidified, producing many needle-like magnetic clusters that are aligned along the magnetic field lines, which have the same direction as the electric field [34; 35; 36; 37; 38; 39]. The magnetic clusters efficiently induce an exchange of ions and electrons between the Fe\({}_{3}\)O\({}_{4}\) metal particles and rubber molecules because they have a bulk hetero-type structure inside the rubber. Although DSSCs have dye and electrolytes, even if the MCF rubber does not involve dye and electrolytes, the photovoltaic effect can be created. The rubber must be water-soluble rubber with C=C bonds in order for electrolytic polymerization. Therefore, natural rubber (NR) and chloroprene rubber (CR), which are categorized as diene rubber involving C=C bonds, are optimal. If the rubber is non-diene rubber or a water-insoluble rubber such as Q, the MCF rubber needs to include polyvinyl alcohol (PVA) and a water-soluble rubber such as NR or CR [40; 41; 42]. For example, if we use Q, which is structured as the basis of dimethylpolysiloxane (PDMS), PVA combines PDMS and isoprene molecules of NR or CR via emulsion polymerization so that the non-diene rubber or water-insoluble rubber can be electrolytically polymerized. The photovoltaic effect is created because Fe\({}_{3}\)O\({}_{4}\) metal particles, rubber, and water molecules have p-type and n-type semiconductor-like roles in the form of ionized \(A^{-}\) (\(A\) is the acceptor) and \(D^{+}\) (\(D\) is the donor) [30; 31].