Alloyed zinc oxide thin films for the conversion of the silicon solar cells spectrum

Optical and photoelectrical properties of ZnO:Me:RE$^{3+}$ thin films on glass and silicon substrates, formed by means of the solgel technique by the spin-coating method are presented. It is shown, that the Al/ZnO:Me:RE$^{3+}$/Si structures obtain photosensitivity in visible and IR spectral ranges. Characteristics obtained for the system “Solar Cell / ZnO:Me:RE$^{3+}$/ glass” have presented a possibility of the use of the studied system as the down-converter of the entering irradiation, as it gives a contribution to the performance factor of the individual solar cell as compared to the “Solar Element/ZnO:Al/glass” system.