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Growth and characterization of semiconductor nanowire structures formed by closely stacked self-assembled quantum dots

Research Project

Project/Area Number 25870885
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Crystal engineering
Nanostructural physics
Research InstitutionToyota Technological Institute

Principal Investigator

OHMORI Masato  豊田工業大学, 工学(系)研究科(研究院), 研究員 (70454444)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywordsナノワイヤ / ナノ細線 / 量子ドット / コラムナ量子ドット / 分子線エピタキシー / 量子ロッド / TEM / EDX
Outline of Final Research Achievements

Transport properties and structural characteristics of a single semiconductor nanowire grown by molecular beam epitaxy were investigated. The nanowires were formed by depositing an AlGaAs/GaAs/InAs short-period superlattice onto self-assembled InAs quantum dots on GaAs. It is found that the nanowire current channels showed good ohmic conduction when the compositions of Al, In and Ga were about 19, 29 and 52%, respectively. In addition, the measurements of the conductance of nanowires as a function of temperature imply Luttinger-liquid behavior. These results suggest that our nanowire has potential applications in optoelectronics devices.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (7 results)

All 2015 2014 2013 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (5 results)

  • [Journal Article] Triangular-barrier quantum rod photodiodes : Their fabrication and detector characteristics2014

    • Author(s)
      M. Ohmori, Y. Kobayashi, P. Vitushinskiy, S. Nakamura, T. Kojima, H. Sakaki
    • Journal Title

      Appl. Phys. Lett

      Volume: 104, 8 Issue: 8 Pages: 81120-81120

    • DOI

      10.1063/1.4867242

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Formation of InAs/AlGaAs/GaAs nanowire structures by self-organized rod growth on InAs quantum dots and their transport properties2013

    • Author(s)
      M. Ohmori, P. Vitushinskiy, T. Kojima, H. Sakaki, Appl. Phys
    • Journal Title

      Express

      Volume: 6, 4 Issue: 4 Pages: 45003-45003

    • DOI

      10.7567/apex.6.045003

    • NAID

      10031166430

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] 三角障壁フォトトランジスタによる高感度赤外光検出2015

    • Author(s)
      大森雅登, 杉村和哉, 小嶋友也, 加戸作成, 野田武司, Pavel Vitushinskiy, 岩田直高, 榊 裕之
    • Organizer
      第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学
    • Year and Date
      2015-03-13
    • Related Report
      2014 Annual Research Report
  • [Presentation] Transport of Electrons in Self-assembled GaInAs Quantum Rod Structures2014

    • Author(s)
      T. Kojima, M. Ohmori, P. Vitushinskiy, H. Sakaki
    • Organizer
      The 41st International Symposium on Conpound Semiconductors
    • Place of Presentation
      Montpellier, France
    • Year and Date
      2014-05-11 – 2014-05-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] InAs/AlGaAs量子ロッド構造の電流電圧特性

    • Author(s)
      小嶋友也, 大森雅登, Vitushinskiy Pavel, 榊裕之
    • Organizer
      第74回応用物理学会秋季学術講演会
    • Place of Presentation
      同志社大学
    • Related Report
      2013 Research-status Report
  • [Presentation] 量子ドット構造を用いた三角障壁フォトダイオードの光検出特性

    • Author(s)
      中村翔, 大森雅登, Vitushinskiy Pavel, 榊裕之
    • Organizer
      第74回応用物理学会秋季学術講演会
    • Place of Presentation
      同志社大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Transport of Electrons in Self-assembled GaInAs Quantum Rod Structures

    • Author(s)
      Tomoya Kojima, Masato Ohmori, Pavel Vitushinskiy, Hiroyuki Sakaki
    • Organizer
      The 41st International Symposium on Conpound Semiconductors
    • Place of Presentation
      Montpellier, France
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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