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| In this paper, ZnO array photoelectrodes with different morphologies were prepared by different hydrothermal reactions, the relationship between morphology of ZnO arrays and performance of dye-sensitized solar cells (DSSCs) was also reported. The morphologies of the prepared products were measured using scanning electron microscopy (SEM), and the results demonstrated that the obtained ZnO arrays were much different in length, aspect ratio and surface topography. The effects of morphology of ZnO arrays on the DSSC performance were investigated by current-voltage (J-V) characteristic test, and the parameters indicated that longer length, higher aspect ratio and hollow shape on the surface of ZnO arrays leaded to the short circuit current density (Jsc) increase, buffer layers provided by ZnO seed film and thick ZnO arrays resulted in the increase of open circuit voltage (Voc). The present research may be helpful to improve the conversion efficiency of ZnO array-based DSSCs. |
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| Keywords:DSSC; ZnO array; hydrothermal reaction; dye sensitization performance |
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