Work

Highly Ordered Anodic Alumina Nanofibers Fabricated via Two Distinct Anodizing Processes

Year: 2015

Type: article

Abstract: Fabrication of high-density, highly ordered anodic alumina nanofibers was demonstrated via two distinct anodizing processes: porous and fibrous oxide formations. Highly ordered aluminum dimple arrays were fabricated via sulfuric/oxalic acid anodizing and selective porous alumina dissolution. Subsequent pyrophosphoric acid anodizing using the nanostructured aluminum surface caused anodic alumina nanofibers to grow preferentially at the six apexes of the ordered hexagonal aluminum dimples under the appropriate electrochemical conditions. Well-defined, high-density, highly ordered anodic alumina nanofibers with 37–75 nm periodic spacing and at densities of 1.4–5.6 × 10 14 m −2 were successfully fabricated on the aluminum surface via two distinct anodizing processes.

Source: ECS Electrochemistry Letters

DOI: 10.1149/2.0021505eel

Authors: D. Nakajima, T. Kikuchi, S. Natsui, R. O. Suzuki

Institution: Hokkaido University

Language: English

Topic: Anodic Oxide Films and Nanostructures

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Funders: Ministry of Education, Culture, Sports, Science and Technology, Hokkaido University, Japan Society for the Promotion of Science

Award: Fabrication of highly ordered nanolens array and its application to the optical devices