Fabrication of anodic aluminum oxide on silica optical fiber with nanopore channels oriented off surface normal

Renhong Tang, Henry Du

Research output: Contribution to journalArticlepeer-review

Abstract

Aluminum coating on silica optical fiber was anodized by applying an electric field off-axis to surface normal of the fiber coating with simulation of the electric field lines between angularly positioned anode and cathode as a guide. The nanostructure features, including nanopore orientation, of the resultant anodized aluminum oxide (AAO) were characterized using scanning electron microscopy. This unique off-axis electric field arrangement enabled the formation of AAO with uniformly tilted nanopore channel arrays. Nanopore channels with tilting angles around 10°–20° relative to surface normal of AAO were obtained. These results are in general agreement with the simulated electric field lines between the anode and cathode.

Original languageEnglish
Pages (from-to)6523-6528
Number of pages6
JournalJournal of the American Ceramic Society
Volume105
Issue number11
DOIs
StatePublished - Nov 2022

Keywords

  • anodization
  • electric field
  • optical fiber
  • tilted nanopore channels

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