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  • Author(s):
    D. V. Lebedev, N. A. Kalyuzhnyy, S. A. Mintairov, K. G. Belyaev, M. V. Rakhlin, A. A. Toropov, P. Brunkov, A. S. Vlasov, J. Merz, S. Rouvimov, S. Oktyabrsky, M. Yakimov, I. V. Mukhin, A. V. Shelaev, V. A. Bykov, A. Yu. Romanova, P. A. Buryak, A. M. Mintairov
    Abstract:

    We investigated structural and emission properties of self-organized InP/GaInP quantum dots (QD) grown by metal organic chemical vapor deposition using an amount of deposited In from 7 to 2 monolayers (ML). In the uncapped samples, using atomic force microscopy (AFM), we observed lateral sizes of 100–200 nm, together with a bimodal height distribution having maxima at ∼5 and ∼15 nm, which we denoted as QDs of type A and B, respectively; and reduction of the density of the type-B dots from 4.4…

    Date Published:
    2018
    Record Visibility:
    Public
  • Author(s):
    D. V. Lebedev, A. M. Mintairov, A. S. Vlasov, V. Yu. Davydov, M. M. Kulagina, S. I. Troshkov, A. A. Bogdanov, A. N. Smirnov, A. Gocalinska, G. Juska, E. Pelucchi, J. Kapaldo, S. Rouvimov, J. L. Merz
    Abstract:

    The emissivity of unstrained quantum-dimensional InP/AlInAs nanostructures and their lasing properties in microdisk cavities prepared by wet etching have been studied. For as-prepared structures, it has been found that they radiate owing to quantum-dimensional InP islands 50–300 nm in diameter. At temperatures below 160 K, whispering gallery modes have been observed in the microdisks. Experimental data on the PL intensity for microcavity modes versus the pump power, which were obtained at liq…

    Date Published:
    2017
    Record Visibility:
    Public