Gamma radiation induced nickel oxide/reduced graphene oxide nanoflowers for improved dye-sensitized solar cells

H. Abdullah, S. Y. Lye, S. Mahalingam, I. Asshari, B. Yuliarto, Abreeza Noorlina Abd. Manap

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Gamma radiation (γ) exposure was used in dye-sensitised solar cell application to improve the power conversion efficiency. Nickel oxide/reduced graphene oxide (NiO/rGO) as the photoanode layer was prepared by chemical bath deposition method. The NiO/rGO samples were used as the control to analyse the NiO/rGO exposed to γ (NiO/rGO-γ). XRD, FESEM and UV–Vis measurement were conducted to study the structure, morphology and the optical analysis of the samples. NiO/rGO-γ nanoflowers were observed through FESEM images with improved morphology. The porosity of the thin films was also increased after the exposure of γ radiation. The increased energy band gap of NiO/rGO-γ annealed at 400 °C exhibited higher power conversion efficiency of 1.03% with Jsc, Voc anf FF of 29 mA/cm2, 0.15 and 0.3 V, respectively.

Original languageEnglish
Pages (from-to)9643-9651
Number of pages9
JournalJournal of Materials Science: Materials in Electronics
Volume29
Issue number11
DOIs
Publication statusPublished - 01 Jun 2018

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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