Synthesis of tetrapod-shaped ZnO nanowires by directive oxidation of Al-Zn mixture

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概要

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• Tetrapod-shaped ZnO nanowires were synthesized by the directive oxidation process of Al-Zn mixtures containing Mg. Mg played a crucial role in the formation of the ZnO nanowires. X-ray diffraction data and SEM images of the nanowires revealed that the ZnO nanowires were single crystalline with wurtzite structure of hexagonal phase. With increasing Mg concentration in Al-Zn mixture from 2 mass% to 8 mass%, the tip morphology of the nanowires changed from spherical shape to needle-like shape, and went back to spherical shape. The quantity of the nanowires first increased and then decreased with Mg concentration. From Energy dispersive X-ray spectrum and SEM image taken for the tip of the ZnO nanowire, it is supposed that the growth of the nanowires proceeded in vapor-solid mechanism. The green emission centered at 510nm was observed at room temperature, which resulted from high density of oxygen vacancies in the nanowires.

• 2009-01-01

著者

• LEE Geun-Hyoung

  Dept. of Information Materials Engineering, Dong-Em University

• Lee Geun-hyoung

  Dep. Of Materials & Components Engineering Dong-eui Univ.

• Lee Geun-hyoung

  Dept. Of Information Materials Engineering Dong-em University

• ALLEN Cary

  Dept. of Physics, Colorado School of Mines

• Allen Cary

  Dept. Of Physics Colorado School Of Mines

関連論文

• ゾルーゲル法により合成したZnO微粉末のフォトルミネッセンス(イノベーティブセラミックス(I))
• Synthesis of Bottle-Shaped ZnO Particles through the Oxidation of a Mixture of Al-Zn-Au
• Synthesis of tetrapod-shaped ZnO nanowires by directive oxidation of Al-Zn mixture

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