Abstract
In contrast to ordinary solid-state solar cells, a flexible, elastic, extensible and light-weight solar cell has the potential to be extremely useful in many new engineering applications, such as in the field of robotics. Therefore, we propose a new type of artificial skin for humanoid robots with hybrid functions, which we have termed hybrid skin (H-Skin). To realize the fabrication of such a solar cell, we have continued to utilize the principles of ordinary solid-state wet-type or dye-sensitized solar rubber as a follow-up study to the first report. In the first report, we dealt with both photovoltaic- and piezo-effects for dry-type magnetic compound fluid (MCF) rubber solar cells, which were generated because the polyisoprene, oleic acid of the magnetic fluid (MF), and water served as p- and n- semiconductors. In the present report, we deal with wet-type MCF rubber solar cells by using sensitized dyes and electrolytes. Photoreactions generated through the synthesis of these components were investigated by an experiment using irradiation with visible and ultraviolet light. In addition, magnetic clusters were formed by the aggregation of Fe3O4 in the MF and the metal particles created the hetero-junction structure of the semiconductors. In the MCF rubber solar cell, both photo- and piezo-electricity were generated using a physical model. The effects of tension and compression on their electrical properties were evaluated. Finally, we experimentally demonstrated the effect of the distance between the electrodes of the solar cell on photoelectricity and built-in electricity.
Highlights
Ordinary solar cells are fabricated as a solid-state material and are typically used in the configuration state as a flat plate so that they are difficult to bend, compress by pressure, or expand by tension, and cannot withstand impact and load forces
In the first report [24], we investigated the possibility of a novel rubber-type solar cell with a sensing, magnetic compound fluid (MCF) rubber solar cell, which correspond to a new type of artificial skin named “hybrid skin (H-Skin)” with the hybrid functions of elasticity, flexibility, photovoltaics and piezoelectricity obtained by synthesis using natural rubber (NR)-latex, MCF, TiO2 particles, dye and electrolyte, with reference to the principles of the fabrication of wet-type or dye-sensitized solar cells using a physical-chemical model
We investigated the effect of the kind of anode electrode material caused in work function on photovoltaics for wet-type MCF rubber solar cell
Summary
Ordinary solar cells are fabricated as a solid-state material and are typically used in the configuration state as a flat plate so that they are difficult to bend, compress by pressure, or expand by tension, and cannot withstand impact and load forces. In the first report [24], we investigated the possibility of a novel rubber-type solar cell with a sensing, magnetic compound fluid (MCF) rubber solar cell, which correspond to a new type of artificial skin named “hybrid skin (H-Skin)” with the hybrid functions of elasticity, flexibility, photovoltaics and piezoelectricity obtained by synthesis using natural rubber (NR)-latex, MCF, TiO2 particles, dye and electrolyte, with reference to the principles of the fabrication of wet-type or dye-sensitized solar cells using a physical-chemical model. The dry-type MCF rubber solar cell induced a relatively small electric current density This result was influenced by other experimental conditions such as the kind of sensitized dye and the kind of electrode material caused in work function. The effect of simultaneously existing tension and compression on the photovoltaics of wet-type MCF rubber solar cell is investigated in this report. The present report investigates the effect of electrode location on photovoltaics of the wet-type MCF rubber solar cell without tension and compression
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