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

Research output: Contribution to conferenceAbstract

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.
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

Fingerprint

cathodoluminescence
nanorods
nitrides
metalorganic chemical vapor deposition
flat surfaces
light emitting diodes
templates
lithography
routes
etching
quantum wells
electric fields
evaluation

Keywords

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

Cite this

Edwards, P. R., Le Boulbar, E. D., Shields, P. A., Allsopp, D. W. E., & Martin, R. W. (2014). Cathodoluminescence hyperspectral imaging of nitride core-shell structures. 679-680. Abstract from Condensed Matter in Paris 2014 (CMD25-JMC14), France.
Edwards, P. R. ; Le Boulbar, E. D. ; Shields, P. A. ; Allsopp, D. W. E. ; Martin, R. W. / Cathodoluminescence hyperspectral imaging of nitride core-shell structures. Abstract from Condensed Matter in Paris 2014 (CMD25-JMC14), France.2 p.
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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.",
keywords = "spectroscopic techniques, cathodoluminescence (CL), hyperspectral imaging (HSI), nitride nanostructures",
author = "Edwards, {P. R.} and {Le Boulbar}, {E. D.} and Shields, {P. A.} and Allsopp, {D. W. E.} and Martin, {R. W.}",
year = "2014",
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pages = "679--680",
note = "Condensed Matter in Paris 2014 (CMD25-JMC14) ; Conference date: 24-08-2014 Through 29-08-2014",

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Edwards, PR, Le Boulbar, ED, Shields, PA, Allsopp, DWE & Martin, RW 2014, 'Cathodoluminescence hyperspectral imaging of nitride core-shell structures' Condensed Matter in Paris 2014 (CMD25-JMC14), France, 24/08/14 - 29/08/14, pp. 679-680.

Cathodoluminescence hyperspectral imaging of nitride core-shell structures. / Edwards, P. R.; Le Boulbar, E. D.; Shields, P. A.; Allsopp, D. W. E.; Martin, R. W.

2014. 679-680 Abstract from Condensed Matter in Paris 2014 (CMD25-JMC14), France.

Research output: Contribution to conferenceAbstract

TY - CONF

T1 - Cathodoluminescence hyperspectral imaging of nitride core-shell structures

AU - Edwards, P. R.

AU - Le Boulbar, E. D.

AU - Shields, P. A.

AU - Allsopp, D. W. E.

AU - Martin, R. W.

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

KW - spectroscopic techniques

KW - cathodoluminescence (CL)

KW - hyperspectral imaging (HSI)

KW - nitride nanostructures

UR - http://cmd25jmc14.sciencesconf.org/

M3 - Abstract

SP - 679

EP - 680

ER -

Edwards PR, Le Boulbar ED, Shields PA, Allsopp DWE, Martin RW. Cathodoluminescence hyperspectral imaging of nitride core-shell structures. 2014. Abstract from Condensed Matter in Paris 2014 (CMD25-JMC14), France.