Low-density inas quantum dots grown on InP(001) using solid-source molecular beam epitaxy with a post-growth annealing process

Ryosuke Kubota, Toshiharu Saiki, Philippe Regreny, Aziz Benamrouche, Michel Gendry

    研究成果: Article

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    Low-density InAs quantum dots (QDs) with a large lateral size were grown on InP(001) by solid-source molecular beam epitaxy with a post-growth annealing process. A decrease in QD density with the amount of InAs deposited was shown by atomic force microscopy, and a density of 5 × 108 QDs/cm 2 was obtained for 0.8 monolayer InAs deposition. Moreover, we found that the growth mechanism of QDs changed significantly depending on the amount of InAs deposited in the vicinity of critical thickness, even if the same annealing condition was applied. Near-field photoluminescence spectroscopy of single QDs demonstrated the high optical qualities of low-density QDs.

    元の言語English
    ページ(範囲)412011-412014
    ページ数4
    ジャーナルJapanese journal of applied physics
    49
    発行部数4 PART 1
    DOI
    出版物ステータスPublished - 2010 4

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

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