Cu2O nanowires in an alumina template: Electrochemical conditions for the synthesis and photoluminescence characteristics

Eunseong Ko, Jinsub Choi, Koichi Okamoto, Yongsug Tak, Jaeyoung Lee

研究成果: ジャーナルへの寄稿学術誌査読

56 被引用数 (Scopus)

抄録

Cu2O nanowires, mainly consisting of (100) and (200) polycrystalline structures with a length of 4 μm are prepared by electrochemical deposition using a porous alumina template. It is found that the optimized electrochemical conditions to prepare Cu2O nanowires are different from those for the formation of a bulk thin Cu2O layer since different pH values are found between the tip of the pores and the bulk, due to diffusion limits in porous alumina with an extremely high aspect ratio of 300. We point out that Cu2O (200), Cu2O (111), Cu, and co-deposited alloys can be obtained under specific electrochemical conditions. In addition, the optical band gap of the prepared Cu2O nanowires with a length of 4 μm and a diameter of 200 nm is estimated to be 2.17 eV from photoluminescence measurements.

本文言語英語
ページ(範囲)1505-1509
ページ数5
ジャーナルChemPhysChem
7
7
DOI
出版ステータス出版済み - 7月 17 2006
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 原子分子物理学および光学
  • 物理化学および理論化学

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