Comparison of photocurrent spectra of InGaAsN QD and InGaAs QW laser devices

Q. Gao*, M. Buda, H. H. Tan, C. Jagadish

*Corresponding author for this work

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

    Abstract

    An InGaAsN quantum dot (QD) laser structure and a reference InGaAs single quantum well (QW) laser structure were grown on GaAs substrates by metalorganic chemical vapor deposition. A comparison study of photocurrent spectra of these two structures was performed. It was found that InGaAsN QD devices exhibit a lower-energy transition and shows a smaller quantum-confined Stark effect than InGaAs QW devices. Also the wetting layer of InGaAsN QD devices shows a broader absorption peak than the InGaAs QW layer.

    Original languageEnglish
    Title of host publicationCOMMAD04 - 2004 Conference on Optoelectronic and Microelectronic Materials and Devices -Proceedings
    Pages9-12
    Number of pages4
    DOIs
    Publication statusPublished - 2005
    EventCOMMAD04 - 2004 Conference on Optoelectronic and Microelectronic Materials and Devices - Bribane, QLD, Australia
    Duration: 8 Dec 200410 Dec 2004

    Publication series

    NameConference on Optoelectronic and Microelectronic Materials and Devices, Proceedings, COMMAD

    Conference

    ConferenceCOMMAD04 - 2004 Conference on Optoelectronic and Microelectronic Materials and Devices
    Country/TerritoryAustralia
    CityBribane, QLD
    Period8/12/0410/12/04

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