Cathodoluminescence spectral mapping of selectively grown III-nitride structures

R W Martin, P R Edwards, C Liu, C J Deatcher, H M H Chong, R M De La Rue, I M Watson

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


An array of pyramids containing templated InGaN/GaN quantum wells have been fabricated using selective overgrowth above patterned silica masks and studied using cathodoluminescence hyperspectral imaging. The cathodoluminescence reveals bright luminescence at the peaks of the micropyramids, red shifted from that due to similar, conventionally grown planar quantum wells. The possibility that this emission is due to quantum dots is discussed.

Original languageEnglish
Pages (from-to)135-138
Number of pages4
JournalInstitute of Physics Conference Series
Publication statusPublished - 19 Feb 2004
EventInstitute of Physics Electron Microscopy and Analysis Group Conference - , United Kingdom
Duration: 3 Sept 20035 Sept 2003


  • cathodoluminescence
  • spectral mapping
  • microscopy


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