Enhanced Efficiency of Dye-Sensitized Solar Cells Based on Polyol-Synthesized Nickel–Zinc Oxide Composites

Moab Rajan Philip, Rupesh Babu, Krishnakumar Vasudevan, Hieu Pham Trung Nguyen

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)252-260
Number of pages9
JournalJournal of Electronic Materials
Volume48
Issue number1
DOIs
StatePublished - Jan 15 2019

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

Keywords

  • Nickel–zinc oxide
  • dye-sensitized solar cell
  • nanomaterials
  • polyol method
  • porous

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