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


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
Issue number5
StatePublished - Mar 2000

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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