Abstract
One-dimensional nanostructured photoanode in the dye-sensitized solar cell (DSSC) provides better electron transport and lifetime. One-dimension TiO2 nanostructures (1D-TNs) were prepared by single-step hydrothermal synthesis for 10 h using titanium(IV) isopropoxide (TTIP) and titanium(IV) chloride (TiCl4) as the precursor. Nano parallelepiped TiO2 film was uniformly grown on the substrate which was ball milled to increase the specific surface area to felicitate sufficient dye-loading for efficient DSSC. The synthesized nanostructures were characterized by scanning and transmission electron microscopy and X-ray diffraction. Photovoltaic properties of DSSC with prepared TiO2 1D-TNs as the active layer, N719 dye and Pt counter electrode was investigated. The power conversion efficiency of the prepared cells was measured by using solar simulator under standard test conditions (100 mW/cm2, AM 1.5). The cell performance can be maximized by optimizing the thickness of 1D-TNs photoanode. The promising power conversion efficiency of 5.77% was obtained with the photoanode of 5 μm thickness.
Published Version
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