Cathodoluminescence hyperspectral imaging of nitride core-shell structures

P. R. Edwards, E. D. Le Boulbar, P. A. Shields, D. W. E. Allsopp, R. W. Martin

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Abstract

In this work, we demonstrate the use of hyperspectral CL in the evaluation of periodic arrays of GaN/InxGa1-xN core-shell nanorods. These were fabricated using a top-down approach, in which columns are formed from a GaN template using nano-imprint lithography and ICP etching, followed by MOCVD regrowth [2]. The formation of quantum wells (QWs) on the mplane sidewall facets offers a route to avoiding the detrimental electric fields associated with LEDs grown on the c-plane, while the use of periodic features has the potential to improve light extraction and directionality.
Original languageEnglish
Pages679-680
Number of pages2
Publication statusPublished - 2014
EventCondensed Matter in Paris 2014 (CMD25-JMC14) - , France
Duration: 24 Aug 201429 Aug 2014

Conference

ConferenceCondensed Matter in Paris 2014 (CMD25-JMC14)
CountryFrance
Period24/08/1429/08/14

Keywords

  • spectroscopic techniques
  • cathodoluminescence (CL)
  • hyperspectral imaging (HSI)
  • nitride nanostructures

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