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    • Synthesis of one-dimensional N-doped Ga2O3 nanostructures: different morphologies and different mechanisms

      S C Vanithakumari K K Nanda

      Volume 34 Issue 7 December 2011 pp 1331-1338

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      https://www.ias.ac.in/article/fulltext/boms/034/07/1331-1338

    • Keywords

       

      Ga2O3 nanostructures; nitrogen doping; white light emission; growth mechanism.

    • Abstract

       

      N-doped monoclinic Ga2O3 nanostructures of different morphologies have been synthesized by heating Ga metal in ambient air at 1150°C to 1350°C for 1 to 5 h duration. Neither catalyst nor any gas flow has been used for the synthesis of N-doped Ga2O3 nanostructures. The morphology was controlled by monitoring the curvature of the Ga droplet. Plausible growth mechanisms are discussed to explain the different morphology of the nanostructures. Elemental mapping by electron energy loss spectroscopy of the nanostructures indicate uniform distribution of Ga, O and N. It is interesting to note that we have used neither nitride source nor any gas flow but the synthesis was carried out in ambient air. We believe that ambient nitrogen acts as the source of nitrogen. Unintentional nitrogen doping of the Ga2O3 nanostructures is a straightforward method and such nanostructures could be promising candidates for white light emission.

    • Author Affiliations

       

      S C Vanithakumari1 K K Nanda1

      1. Materials Research Centre, Indian Institute of Science, Bangalore 560 012, India

    • Dates

       
      Published
      December 2011
      Manuscript received
      30 November 2009

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