Semiconductors

, Volume 52, Issue 4, pp 497–501 | Cite as

Density Control of InP/GaInP Quantum Dots Grown by Metal-Organic Vapor-Phase Epitaxy

  • 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
XXV International Symposium “Nanostructures: Physics and Technology”, Saint Petersburg, June 26–30, 2017. Quantum Wells, Quantum Wires, Quantum Dots, and Band Structure
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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 to 1.6 μm–2. The reduction of the density of B-type dots were observed also using transmission electron microscopy of the capped samples. Using single dot low-temperature photoluminescence (PL) spectroscopy we demonstrated effects of Wigner localization for the electrons accumulated in these dots.

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • D. V. Lebedev
    • 1
  • N. A. Kalyuzhnyy
    • 1
  • S. A. Mintairov
    • 1
  • K. G. Belyaev
    • 1
  • M. V. Rakhlin
    • 1
  • A. A. Toropov
    • 1
  • P. Brunkov
    • 1
    • 6
  • A. S. Vlasov
    • 1
  • J. Merz
    • 2
  • S. Rouvimov
    • 2
  • S. Oktyabrsky
    • 3
  • M. Yakimov
    • 3
  • I. V. Mukhin
    • 4
  • A. V. Shelaev
    • 5
  • V. A. Bykov
    • 5
  • A. Yu. Romanova
    • 6
  • P. A. Buryak
    • 6
  • A. M. Mintairov
    • 1
    • 2
  1. 1.Ioffe InstituteSt. PetersburgRussia
  2. 2.University of Notre DameNotre DameUSA
  3. 3.Institute for MaterialsState University of New York at AlbanyAlbanyUSA
  4. 4.St. Petersburg Academic UniversitySt. PetersburgRussia
  5. 5.NT-MDT Spectrum InstrumentsZelenogradRussia
  6. 6.St. Petersburg Polytechnical UniversitySt. PetersburgRussia

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