Development of semipolar (11-22) LEDs on GaN templates

  • B. Corbett
  • , Z. Quan
  • , D. V. Dinh
  • , G. Kozlowski
  • , D. O'Mahony
  • , M. Akhter
  • , S. Schulz
  • , P. Parbrook
  • , P. Maaskant
  • , M. Caliebe
  • , M. Hocker
  • , K. Thonke
  • , F. Scholz
  • , M. Pristovsek
  • , Y. Han
  • , C. J. Humphreys
  • , F. Brunner
  • , M. Weyers
  • , T. M. Meyer
  • , L. Lymperakis

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

We report on blue and green light-emitting-diodes (LEDs) grown on (11-22)-GaN templates. The templates were created by overgrowth on structured r-plane sapphire substrates. Low defect density, 100 mm diameter GaN templates were obtained by metal organic vapour phase epitaxy (VPE) and hydride VPE techniques. Chemical-mechanical polishing was used to obtain smooth surfaces for the subsequent growth of LED structures. Ohmic contacts to the p-type GaN were obtained despite the lower activated acceptor levels. The LEDs show excellent output power and fast carrier dynamics. Freestanding LEDs have been obtained by use of laser-lift-off. The work is the result of collaboration under the European Union funded ALIGHT project.

Original languageEnglish
Title of host publicationLight-Emitting Diodes
Subtitle of host publicationMaterials, Devices, and Applications for Solid State Lighting XX
EditorsHeonsu Jeon, Li-Wei Tu, Martin Strassburg, Michael R. Krames
PublisherSPIE
ISBN (Electronic)9781510600034
DOIs
Publication statusPublished - 2016
EventLight-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XX - San Francisco, United States
Duration: 15 Feb 201617 Feb 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9768
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceLight-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XX
Country/TerritoryUnited States
CitySan Francisco
Period15/02/1617/02/16

Keywords

  • GaN
  • LED
  • MOVPE
  • Semipolar
  • Upscaling
  • Visible light communication (VLC)

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