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Fabrication and characterization of electrodeposited crystalline Au nanowires into anodic alumina templates



  1. Department of Physics, National Institute of Technology, Uttarakhand, India
  2. Department of Applied Sciences, Punjab Engineering College, Chandigarh, India


Gold nanowires were fabricated using three electrode arrangements by electrodeposition method. Conducting alumina templates were used as a working electrode and platinum wire as the counter electrode. Formation of gold nanowires has been evidenced using characterization techniques such as X-ray diffraction (XRD) and scanning electron microscopy (SEM). It was found by cross-sectional SEM micrograph that the average length of nanowires is ∼ 800 nm. The presence of four characteristic peaks at 2θ value of 37.89°, 44.06°, 64.46°, 77.36° and 81.54° corresponding to (111), (200), (220) (311) and (222) planes have confirmed the crystalline nature of nanowires. I–V measurements of gold nanowires have shown typical metallic characteristics after post deposition annealing at 200°C. The small non-linear regions observed in I-V measurements are attributed to the presence of defects in nanowires. The impedance behavior of nanowires was recorded using impedance analyzer. The decrease in impedance after 0.10 MHz is due to high capacitive coupling resulting from very high pore density of the alumina template..


Au nanowires, Electrodeposition, Alumina oxide template, Nanomaterial.

Submitted at: May 26, 2021
Accepted at: April 8, 2022


S. AGARWAL, S. KUMAR, M. S. KHATRI, Fabrication and characterization of electrodeposited crystalline Au nanowires into anodic alumina templates, Journal of Optoelectronics and Advanced Materials Vol. 24, Iss. 3-4, pp. 187-190 (2022)