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Photovoltaic cell is a device to convert light energy into electrical energy which today are often a highlight of researchers, especially in the field of physical chemistry. Photovoltaic cells is expected to be environmentally friendly alternative energy source that can be a solution in overcoming the limitations of fossil energy. The use of semiconductor CuO having Gab from 1.3 to 1.7 eV energy is potential in this photovoltaic cell. The extent of the absorption spectrum (from UV to Vis) it is possible to be developed in the area of Indonesia that is more than 10 hours to get sunlight. The principle used in photovoltaic cells is the principle of galvanic cells, but here using sunlight to excite the electrons in the semiconductor used. In this study attempted liquid photovoltaic cell electrode pair CuO/Cu, CuO/Ag in a solution of electrolyte NaCl and NaOH. Electrodes of Cu and CuO in the form of fibers obtained from PLN standard power cord. For Ag electrode obtained from pure Ag metal. Measurement of the strong currents made before the illuminated (light space) and after exposed to sunlight. From the results obtained that the magnitude of current generated at the electrode pair CuO/Cu and CuO/Ag for each of the electrolyte solution of NaCl and NaOH is different. It found that the electrode CuO/Ag is more stable than CuO/Cu although the resulting flow is relatively small. Efficiency of sun light that is ¢ = 9,01 x 10-25 watt s photon-1.
Key words: photovoltaic cell, semiconductor CuO, electrolyte
