Performance improvement of 650 nm band AlGaInP laser diodes with optimal diffusion barriers

Young Chul Shin, Bum Jun Kim, Dong Hoon Kang, Young Min Kim, Tae Geun Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

GaInP/AlGaInP multiple quantum-well (MQW) laser diodes with diffusion barriers for Zn, grown by metal organic chemical vapor deposition (MOCVD), were fabricated and characterized. To determine the optimal conditions for the diffusion barriers, we investigated Zn diffusion in the GaInP/(Al 0.5Ga0.5)0.5In0.5P MQW layers against three undoped (Al0.7Ga0.3)0.5In 0.5P diffusion barriers with thicknesses of 0, 90, and 130 nm, respectively, by secondary ion mass spectroscopy (SIMS). Compared to the reference AlGaInP laser diode without a diffusion barrier, the AlGaInP ridge laser with a 130 nm thick diffusion barrier on the top of the MQW layer had a threshold current that was greatly reduced from 110 to 75 mA and the characteristic temperature To that was increased from 113 to 144 K in the temperature range from 25 to 50 °C. This report presents quantitative information on the effect of Zn diffusion on laser performance.

Original languageEnglish
Pages (from-to)80-82
Number of pages3
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume128
Issue number1-3
DOIs
Publication statusPublished - 2006 Mar 15

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Diffusion barriers
Semiconductor lasers
semiconductor lasers
Semiconductor quantum wells
Organic Chemicals
Quantum well lasers
Lasers
Organic chemicals
quantum wells
Chemical vapor deposition
quantum well lasers
Metals
Spectroscopy
Ions
threshold currents
lasers
metalorganic chemical vapor deposition
Temperature
ridges
mass spectroscopy

Keywords

  • 650 Nm band laser
  • Diffusion barrier
  • MOCVD
  • SIMS
  • Zn diffusion
  • Zn-doped (AlGa) InP

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Performance improvement of 650 nm band AlGaInP laser diodes with optimal diffusion barriers. / Shin, Young Chul; Kim, Bum Jun; Kang, Dong Hoon; Kim, Young Min; Kim, Tae Geun.

In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 128, No. 1-3, 15.03.2006, p. 80-82.

Research output: Contribution to journalArticle

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