Phase segregation in AlInP shells on GaAs nanowires.

@article{Skld2006PhaseSI,
  title={Phase segregation in AlInP shells on GaAs nanowires.},
  author={Niklas Sk{\"o}ld and Jakob Wagner and Gunnel M. Karlsson and Tania Hern{\'a}n and W. Seifert and Mats-erik Pistol and Lars Samuelson},
  journal={Nano letters},
  year={2006},
  volume={6 12},
  pages={
          2743-7
        }
}
We have studied morphology and phase segregation of AlInP shells on GaAs nanowires. Photoluminescence measurements on single core-shell nanowires indicated variations in the shell composition, and phase segregation was confirmed by cross-sectional scanning transmission electron microscopy on 30 nm thin slices of the wires. It was discovered that Al-rich domains form in the <112> directions where two {110} shell facets meet during growth. We propose that the mechanism behind this phase… CONTINUE READING
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Semiconductor Nanowires: Epitaxy and Applications

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FIB plan and side view cross-sectional TEM sample preparation of nanostructures.

  • Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada
  • 2014
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