Influence of Deposition Voltage on Growth of ZnO Nanowires by Cathodic Electrodeposition

Abstract:

Zinc oxide nanowires (NWs) were synthesized by potentio-static cathodic electrodepsition in polycarbonate (PC) template at 70 °C. The electro-reduction of hydroxide ions in presence of Zn²⁺ ions within Zn (NO₃)₂ is involved in the growth of nanowire arrays. Altering various deposition parameters such as deposition voltage made it possible to obtain arrays of vertically aligned ZnO NWs with different growth rates. Furthermore, the effect of voltage on the chronoamperometric diagrams was studied. The X-ray diffraction pattern clearly confirms the polycrystalline nature of the ZnO NWs; however, Scanning Electron Microscopy (SEM) images reveal that the length of NWs slightly increases by increasing deposition voltage. It is demonstrated that varying deposition voltage has a significant impact on the growth rate but a small changes of the size of NWs is observed.

• Periodical: Advanced Materials Research (Volume 829)
• Pages: 732-736
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.829.732
• Online since: November 2013
• Authors: Elahe Akbari*, Nooshin Ayati, Seyed Pirooz Marashi
• Keywords: Electrodeposition, Nanowire, Voltage, Zinc Oxide (ZnO)

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