Fabrication and characteristics of ordered Ni nanostructures on glass by anodization and direct current electrodeposition

Song Zhu Chu*, Kenji Wada, Satoru Inoue, Sin ichi Todoroki, Yukiko K. Takahashi, Kazuhiro Hono

*この研究の対応する著者

研究成果: Article査読

120 被引用数 (Scopus)

抄録

A novel process for fabrication of metal nanostructure arrays directly on glass substrates is described. An aluminum film was sputter-deposited on a glass substrate coated with a tin-doped indium oxide (ITO) film. The films were then anodically oxidized to obtain a porous alumina template, with pore diameters ranging from 5 to 150 nm, which was used as a template-electrode in a direct current electrodeposition to fabricate various nickel nanowires (Ø 18-180 nm, 0.5-2.6 μm long) in the nanopores. The porous alumina films not only define the dimensions of the nanowires but also influence the crystalline orientation. The magnetic hysteresis measurement showed that the Ni nanowire arrays have significant magnetic anisotropy proportional to their aspect ratios. The coercivity (Hc) and the squareness (Mr/Ms) perpendicular to the substrates were 1025 Oe and 0.74 for the Ni nanowires of Ø 50 nm (1.8 μm), and 830 Oe and 0.94 for the Ni nanowires of Ø 18 nm (1.2 μm), respectively.

本文言語English
ページ(範囲)4595-4602
ページ数8
ジャーナルChemistry of Materials
14
11
DOI
出版ステータスPublished - 2002 11 1
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • 材料化学

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