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GaAs-based red-emitting InAlAs/AlGaAs quantum dots and quantum-dot laser

  • H. Y. Liu
  • , R. J. Airey
  • , M. J. Steer
  • , P. A. Houston
  • , I. R. Sellers
  • , D. J. Mowbray
  • University of Sheffield

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

1 Scopus citations

Abstract

Semiconductor quantum dots (QDs) are the subject of extensive study due to their promising applications in novel optoelectronics devices. However relatively few studies of red-emitting QDs have been reported due mainly to the difficulty in fabricating high-quality InAlAs/AlGaAs on GaAs substrates. We study the effect of growth temperature on the optical and structural properties of InAlAs/AlGaAs QDs. With increasing substrate temperature from 530 to 560°C, a significant improvement in the QD material quality is observed. In addition at room temperature, ground state lasing is demonstrated for a laser with six InAlAs/AlGaAs QD layers grown at 560°C.

Original languageEnglish
Title of host publicationMBE 2002 - 2002 12th International Conference on Molecular Beam Epitaxy
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages239-240
Number of pages2
ISBN (Electronic)0780375815, 9780780375819
DOIs
StatePublished - 2002
Event12th International Conference on Molecular Beam Epitaxy, MBE 2002 - San Francisco, United States
Duration: Sep 15 2002Sep 20 2002

Publication series

NameMBE 2002 - 2002 12th International Conference on Molecular Beam Epitaxy

Conference

Conference12th International Conference on Molecular Beam Epitaxy, MBE 2002
Country/TerritoryUnited States
CitySan Francisco
Period09/15/0209/20/02

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