Abstract
A nano-crystal N-Zn/TiO2 anode film was prepared using a combined technology. X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy and cyclic voltammetry characterizations showed that the two elements N and Zn were doped into nano-crystal TiO2 successfully. This resulted in a strong redshift in the UV-Visible spectrum. UV-Visible measurements showed that the light absorption of N719 and P3OT were complementary and covered the entire visible region. This led to a high utilization of visible light. Solar cells based on the N-Zn/TiO2 anode film were co-sensitized using P3OT and N719. The cells have a short-circuit current density of 7.91 mA/cm2, an open-circuit photovoltage of 0.659 V, and a photoelectric conversion efficiency of 2.64%. Also, the relationship among the N-Zn/TiO2-film anode’s electric structure, the dye’s LUMO, electrochemical impedance, and photoelectric conversion efficiency are discussed in the paper.
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Fu, Z., Zhang, J., Yang, X. et al. Preparation of nano-crystal N-Zn/TiO2 anode films and the effects of co-sensitization on the performance of dye-sensitized solar cells. Chin. Sci. Bull. 56, 2001–2008 (2011). https://doi.org/10.1007/s11434-011-4535-7
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DOI: https://doi.org/10.1007/s11434-011-4535-7