Simple model of mass transfer in template synthesis of metal ordered nanowire arrays

Daniil A. Bograchev, Vladimir M. Volgin, Alexey D. Davydov

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

A simple model of electrochemical growth of nanowires in the pores of anodic aluminum oxide (AAO) template is developed. The metal deposition is considered at various overpotentials. The model takes into consideration the ionic transfer both in the varying diffusion layer in the pores and in the diffusion layer above the template, which is determined by the external hydrodynamic conditions. The model takes into account the kinetics of electrochemical reaction by means of the Tafel equation and the diffusion transfer of metal cations both in the pores and in the outer diffusion layer. The analytical solution of the problem with several simplifications yields the equations for calculating the time dependence of current, the pore filling time, and other parameters of the process. An example of the application of the model for the analysis of nanowire growth in the template pores is compared with the experimental data showing good agreement.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalElectrochimica Acta
Volume96
DOIs
StatePublished - 30 Apr 2013
Externally publishedYes

Keywords

  • Anodic aluminum oxide
  • Metal electrodeposition
  • Nanowires
  • Template synthesis

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