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Verfasser Titel Jahr
zeige Details Zhang, J. Fabrication and photoluminescence of ordered GaN nanowire arrays
In: The Journal of Chemical Physics. - College Park, Md. : Inst., ISSN 1089-7690, Vol. 115, No. 13 (2001), p. 5714-5717
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2001
Large-scale of crystalline GaN nanowires (diameter∼50 nm) have been fabricated through chemical-vapor deposition in the nanochannels of the anodic alumina template. X-ray diffraction and selected area electron diffraction pattern investigations indicate that the nanowires are single crystal with hexagonal wurtzite structure. A typical scanning electron microscopy image and the energy dispersive x-ray spectroscopy results indicate that indium nanoparticles only act as catalyst in GaN nanowires growth. At room temperature, photoluminescence spectrum of the GaN nanowire arrays shows a visible broadband with three peaks, which are located at about 363, 442, and 544 nm. The light emission may be attributed to GaN band-edge emission, the existence of defects or surface states, and the interaction between the ordered GaN nanowires and anodic alumina membrane. The growth mechanism of crystalline GaN nanowires is discussed. The method makes it possible to synthesize other nitride nanowire arrays. © 2001 American Institute of Physics.
1. Verfasser: Zhang, J.
Format: Elektronisch
Sprache: English
Erschienen: 2001.
Serie: AIP Digital Archive [Dig. Serial]
Schlagwörter:
URL: http://dx.doi.org/10.1063/1.1407005

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