Fabrication of tunable hierarchical ZnO nanostructures via an anodization process

D. Kishore Kumar, Damaris Suazo-Davila, Desirée García-Torres, Carlos R. Cabrera, Ch Venkata Reddy, Kakarla Raghava Reddy

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The size and morphology of nanomaterials replicate optical, electrical, and mechanical properties and their applications. In this paper, for the first time, ZnO hierarchical nanostructures were grown on Zn foil through electrochemical anodization in the presence of fluoride ions at room temperature in water/glycerol electrolyte. Fluoride ions are vital for development of chelation reactions and the formation of ZnO hierarchical nanostructures. XRD analysis confirmed the ZnO crystal phase to be wurtzite, and the Raman analysis confirmed the crystal phase to be wurtzite hexagonal. The surface morphology of ZnO reveals that the nanostructures grown on Zn foil are hierarchical nanoflowers with an even distribution. The identified binding energies from the XPS spectrum confirmed the Zn2+ state. Such unique hierarchical architectured ZnO can be used for designing high-performance optoelectronic devices such as LED lights, photodiodes, nanosensors, and solar cells.

Original languageEnglish
Article number131890
JournalMaterials Letters
StatePublished - 1 May 2022
Externally publishedYes


  • Electrochemical anodization
  • Electronic devices
  • Photoluminescence
  • Tunable synthesis
  • Zn foil substrate
  • ZnO hierarchical architectures

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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