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Fabrication, optical characterization and modeling of strained core-shell nanowires

Författare:
Publiceringsår: 2006
Språk: Engelska
Sidor: 793-796
Publikation/Tidskrift/Serie: Proceedings of the Eighth International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures and the Thirteenth International Congress on Thin Films - ACSIN-8/ICTF-13 (Thin Solid Films)
Volym: 515
Nummer: 2
Dokumenttyp: Konferensbidrag
Förlag: Elsevier Science B.V.

Sammanfattning

Strained nanowires with varying InAs/InP core/shell thicknesses were grown using Chemical Beam Epitaxy. Microphotoluminescence spectroscopy, performed at low temperature, was then used to study the optical properties of single wires. Emission from the InAs core was observed and its dependence on the shell thickness/core diameter ratio was investigated. We found that it is possible to tune the emission energy towards 0.8 eV by controlling this ratio. We have compared the measured energies with calculated energies. Our findings are consistent with the wires having a hexagonal crystal structure. (c) 2005 Elsevier B.V. All rights reserved.

Disputation

Nyckelord

  • Physics and Astronomy
  • CBE growth
  • nanowires
  • photoluminescence

Övrigt

Eighth International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures and the Thirteenth International Congress on Thin Films - ACSIN-8/ICTF-13
20-23 June 2005
Stockholm, Sweden
Published
Yes
  • ISSN: 0040-6090

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