High-efficiency BGaN/AlN quantum wells for optoelectronic applications in ultraviolet spectral region

Seoung Hwan Park, Woo Pyo Hong, Jong Jae Kim, Bong Hwan Kim, Doyeol Ahn

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Light emission characteristics of ultraviolet (UV) BGaN/AlN quantum well (QW) structures were investigated using the multiband effective-mass theory and non-Markovian model. The BGaN/AlN QW structures show a much larger light intensity than the conventional AlGaN/AlN QW structures. This is mainly due to the fact that the internal field is significantly reduced by increasing boron contents. The spontaneous emission peak shows a maximum at the critical value (x= 0.04) and begins to decrease when the boron content is further increased. Hence, we expect that BGaN/AlN QW structures with small boron contents can be used as a TE-polarized light source with a high efficiency in UV region.

Original languageEnglish
Title of host publication17th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2017
EditorsMorten Willatzen, Joachim Piprek
PublisherIEEE Computer Society
Pages77-78
Number of pages2
ISBN (Electronic)9781509053230
DOIs
StatePublished - 11 Aug 2017
Event17th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2017 - Copenhagen, Denmark
Duration: 24 Jul 201728 Jul 2017

Publication series

NameProceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD
ISSN (Print)2158-3234

Conference

Conference17th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2017
Country/TerritoryDenmark
CityCopenhagen
Period24/07/1728/07/17

Keywords

  • AlN
  • BGaN
  • light-emitting diode
  • polarization
  • quantum well

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