Compositional variations in In0.5Ga0.5N nanorods grown by molecular beam epitaxy

D. Cherns, R. F. Webster, S. V. Novikov, C. T. Foxon, A. M. Fischer, Fernando Ponce, S. J. Haigh

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The composition of InxGa1-xN nanorods grown by molecular beam epitaxy with nominal x=0.5 has been mapped by electron microscopy using Z-contrast imaging and x-ray microanalysis. This shows a coherent and highly strained core-shell structure with a near-atomically sharp boundary between a Ga-rich shell (x∼0.3) and an In-rich core (x∼0.7), which itself has In- and Ga-rich platelets alternating along the growth axis. It is proposed that the shell and core regions are lateral and vertical growth sectors, with the core structure determined by spinodal decomposition.

Original languageEnglish (US)
Article number215705
JournalNanotechnology
Volume25
Issue number21
DOIs
StatePublished - May 30 2014

Fingerprint

Nanorods
Molecular beam epitaxy
Spinodal decomposition
Microanalysis
Platelets
Electron microscopy
Imaging techniques
X rays
Chemical analysis

Keywords

  • core-shell structures
  • EDX mapping
  • InGaN nanorods
  • molecular beam epitaxy
  • spinodal decomposition
  • transmission electron microscopy

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Cherns, D., Webster, R. F., Novikov, S. V., Foxon, C. T., Fischer, A. M., Ponce, F., & Haigh, S. J. (2014). Compositional variations in In0.5Ga0.5N nanorods grown by molecular beam epitaxy. Nanotechnology, 25(21), [215705]. https://doi.org/10.1088/0957-4484/25/21/215705

Compositional variations in In0.5Ga0.5N nanorods grown by molecular beam epitaxy. / Cherns, D.; Webster, R. F.; Novikov, S. V.; Foxon, C. T.; Fischer, A. M.; Ponce, Fernando; Haigh, S. J.

In: Nanotechnology, Vol. 25, No. 21, 215705, 30.05.2014.

Research output: Contribution to journalArticle

Cherns, D, Webster, RF, Novikov, SV, Foxon, CT, Fischer, AM, Ponce, F & Haigh, SJ 2014, 'Compositional variations in In0.5Ga0.5N nanorods grown by molecular beam epitaxy', Nanotechnology, vol. 25, no. 21, 215705. https://doi.org/10.1088/0957-4484/25/21/215705
Cherns, D. ; Webster, R. F. ; Novikov, S. V. ; Foxon, C. T. ; Fischer, A. M. ; Ponce, Fernando ; Haigh, S. J. / Compositional variations in In0.5Ga0.5N nanorods grown by molecular beam epitaxy. In: Nanotechnology. 2014 ; Vol. 25, No. 21.
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