GaInAsSb/AlGa(In)AsSb type I quantum wells emitting in 3 μm range for application in superluminescent diodes

  • M. Kurka*
  • , M. Dyksik
  • , S. Suomalainen
  • , E. Koivusalo
  • , M. Guina
  • , M. Motyka
  • *Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

In this paper, we present results of Fourier-transformed photoluminescence measurements of quaternary GaInAsSb quantum wells with quinary AlGaInAsSb barriers grown on GaSb substrate, designed for spectral range of mid-infrared. Here, we show an emission shift towards longer wavelength as a result of incorporation of indium into the quantum wells reaching up to 3 μm at room temperature (RT). Additionally, we have observed an additional low-energy photoluminescence signal with maximum wavelength of 3.5 μm at RT, which we have attributed as states localised on the layer interfaces. The activation energy of carriers trapped in those states is estimated to be 35 meV.

Original languageEnglish
Pages (from-to)274-278
Number of pages5
JournalOptical Materials
Volume91
DOIs
Publication statusPublished - 1 May 2019
Publication typeA1 Journal article-refereed

Keywords

  • Fourier-transformed spectroscopy
  • MBE
  • Optical gas sensing
  • Photoluminescence
  • Superluminescent diodes

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Computer Science
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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