Abstract
Zn,N-TiO2 powder was prepared using TiCl4 as the precursor. XRD, TEM and CV characterizations show Zn,N have been doped into nano-crystal TiO2 successfully, and the absorbance range of TiO2 anode red-shift to the visible region. Zn,N doped-TiO2 anode film was first prepared by combined technology. Ultraviolet–Visible (UV–Vis) chararterization proved there is a complementarity in UV–Vis absorbance range between poly (3-dodecylthiophene) (P3DDT) and N719. Solar cell based on Zn,N-TiO2 was first co-sensitized by P3DDT and N719. A solar-to-electric energy conversion efficiency of 3.25% was attained with the system. The photoelectric conversion efficiency, Voc and Jsc have been all increased compare to the single dye-sensitized solar cell.
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