| 摘要 |
PURPOSE:To reduce resistance loss in an electrode, and to enable a nonreflective state to the region of the wavelength of 0.3-1.2mum of solar rays by forming a thin-film layer as the electrode by using a specific ultrafine particle normal- temperature superconductive material. CONSTITUTION:Ultrafine particles Y, Ba, Cu in grain size of 0.4-1.2mum are dissolved into an alcohol group solvent, and applied onto an element light- receiving surface and the rear through a spray method and baked, thus shaping an ultrafine particle superconductive-material thin layer 4 consisting of Y.Ba.Cu group oxides. Accordingly, since the thin-film 4 composed of am ultrafine particle normal-temperature superconductive material in grain size of 0.4-1.2mum is formed onto at least one surface of a solar cell element, resistance loss in an electrode 5 is reduced while a nonreflective state on a light-receiving surface is enabled, and the curve factor and short-circuit currents of a solar cell are increased, thus acquiring the solar cell element having high efficiency. |
