Nanoscale compositional fluctuations in multiple inGaAs/GaAs quantum wires

M. Catalano, A. Taurino, M. Lomascolo, L. Vasanelli, M. De Giorgi, A. Passaseo, R. Rinaldi, R. Cingolani, O. Mauritz, G. Goldoni, F. Rossi, E. Molinari, Peter Crozier

    Research output: Contribution to journalArticlepeer-review

    9 Scopus citations

    Abstract

    An accurate analysis of nanoscale compositional fluctuations in InGaAs/GaAs quantum wires grown by metalorganic chemical vapor deposition on V-grooved substrates was performed by means of high-spatial-resolution transmission electron microscopy techniques. Small In fluctuations (2%-3% excess indium), spatially localized over approximately 5 nm, were detected and related to changes in the photoluminescence and photoluminescence excitation spectra.

    Original languageEnglish (US)
    Pages (from-to)2261-2264
    Number of pages4
    JournalJournal of Applied Physics
    Volume87
    Issue number5
    DOIs
    StatePublished - Mar 2000

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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