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Enhanced Efficiency of Dye-Sensitized Solar Cells Based on Polyol-Synthesized Nickel–Zinc Oxide Composites
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Enhanced Efficiency of Dye-Sensitized Solar Cells Based on Polyol-Synthesized Nickel–Zinc Oxide Composites
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Journal Article
Enhanced Efficiency of Dye-Sensitized Solar Cells Based on Polyol-Synthesized Nickel–Zinc Oxide Composites
2019
Overview
In the present work, nickel–zinc oxide (Ni-ZnO) particles have been fabricated through a modified polyol route at 250°C. The highly porous Ni-ZnO samples developed were of high crystalline quality and exhibited great potential for dye-sensitized solar cell (DSSC) applications on account of the quadrupled intensity values of short-circuit current density of around 1.42 mA/cm2, in contrast to 0.31 mA/cm2 for a bare zinc oxide (ZnO) device. The conversion efficiency of the Ni-ZnO DSSC was measured to be 0.416% which is ∼ 6 times higher than that a of ZnO solar cell. Detailed characterization techniques including x-ray diffraction, photoluminescence, scanning electron microscopy and energy-dispersive x-ray spectroscopy were performed on the samples. The Ni-ZnO samples were found to be crystalline with a hexagonal wurtzite lattice structure. The improved efficiency of Ni-ZnO stems from the enhanced absorption and large surface area of the composite.
Publisher
Springer Nature B.V
