Fabrication of dye-sensitized solar cell using nanocomposited aligned ZnO nanorod/TiO2

In this work, the TiO₂ film were deposited on glass substrate at different thicknesses and their structural properties was investigated. Meanwhile, the nanocomposited aligned ZnO nanorods were formed by deposited the TiO₂ film on top of aligned ZnO Nanorod on ITO-coated glass substrates with different of TiO₂ thicknesses using spin coating technique. The nanocomposited alighed ZnO nanorod/TiO₂ were coated with different thicknesses of 900μm, 1815μm, 2710μm, 3620μm and ZnO without TiO₂ represented as a layer 1, layer 2, layer 3, layer 4 and ZnO without TiO₂, respectively. The DSSCs were fabricated from the nanocomposited aligned ZnO nanorod/TiO₂ with layer 1, layer 2, layer 3 and layer 4 and ZnO without TiO₂ their effects on the cell performances of the DSSC were investigated. From the solar simulator measurement the solar energy conversion efficiency (η) of 2.543% under AM 1.5 was obtained for the ZnO nanorod/TiO₂ photoanode layer 3 DSSC. The enhancement of J_sc, V_oc and energy conversion efficiency η attributed from better composite formation thus enriched the absorption of light from absorbed dye and then contributed to higher photocurrent density as well as higher of conversion efficiency.