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Optical characterization of InAs quantum wells and dots grown radially on wurtzite InP nanowires.

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Author

Summary, in English

Correlated micro-photoluminescence (μPL) and cathodoluminescence (CL) measurements are reported for single core-shell InP-InAs wurtzite nanowires grown using metal-organic vapor phase epitaxy. Samples covering a radial InAs shell thickness of 1-12 ML were investigated. The effective masses for the wurtzite material were determined from the transition energy dependence of the InAs shell thickness, using a model based on linear deformation potential theory. InP cores with segments of mixed zincblende and wurtzite, on which quantum dots nucleated selectively, were also investigated. Narrow peaks were observed by μPL and the spatial origin of the emission was identified with CL imaging.

Publishing year

2013

Language

English

Publication/Series

Nanotechnology

Volume

24

Issue

22

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Nano Technology
  • Condensed Matter Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0957-4484