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Control over Pore Positions in Anodised Aluminium Oxide Films via Scratching the Surface of Pure Aluminium

  • Darren LeClere (a1), Brian Derby (a2) and George E. Thompson (a3)

Abstract

Anodised aluminium oxide films have several applications in nanotechnology due to the ability to control the dimensions and ordering of the pores. Several techniques have been developed which allow for accurate control over the ordering of pore arrays. Examples of such techniques are the “Two-Step” method, and embossing with optical gratings or micro-machined Si templates. It will be demonstrated that it is possible to control the position of the pores using a nanoindenting device that has scratched the aluminium surface before anodising. The interpore distances accomplished via this technique were 200nm and 400nm by anodising in 0.3M (COOH)2 at 80V and 0.1M H3PO4 at 160V respectively. Hexagonal and square arrays were created by scratching the aluminium with a series of crosshatched lines.

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Keywords

Control over Pore Positions in Anodised Aluminium Oxide Films via Scratching the Surface of Pure Aluminium

  • Darren LeClere (a1), Brian Derby (a2) and George E. Thompson (a3)

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