• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Exploration of novel materials for photochemical water splitting based on semiconductor nanowires and nanostructures

Research Project

Project/Area Number 24656196
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Electronic materials/Electric materials
Research InstitutionHokkaido University

Principal Investigator

MOTOHISA Junichi  北海道大学, 情報科学研究科, 教授 (60212263)

Co-Investigator(Kenkyū-buntansha) SATO Taketomo  北海道大学, 量子集積エレクトロニクス研究センター, 准教授 (50343009)
Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords半導体ナノワイヤ / 多孔質構造 / GaN / InGaN / プラズマ支援分子線エピタキシー / 選択成長 / 光支援電気化学エッチング / 光電極 / プラズマ支援分子線エピタキシー法
Research Abstract

To explore novel materials for photochemical water splitting, we attempted the fabrication of GaN-based nanostructuers and their characterization of electrochemical properties. Growth of GaN and InGaN nanostructures were attempted by selective-area growth using RF-plasma-assisted molecular beam epitaxy. Hexagonal pyramidal structures of GaN were successfully fabricated and a use of alternate mask material for selective-area growth was suggested to be important to realized nanowires which is suitable for water splitting. We also investigated the photo-electrochemical properties of GaN by measureing current-voltage characteristics of GaN in electroryte with and without light irradiation. Furthermore, their characteristics was compared with porous structures, which were fabricated by photo-assisted chemial etching and had high-denstiy nanometer-sized pores on the surface, and it was found that porous structures allowed much lager photocurrent as compared to planar structures.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (8 results)

All 2013 2012 Other

All Presentation (7 results) Remarks (1 results)

  • [Presentation] Selective area growth of GaN by RF-plasma assisted molecular beam epitaxy2013

    • Author(s)
      A. Onodera, A. Yamamoto, and J. Motohisa
    • Organizer
      International Symposium on Advanced Nanodevice and Nanotechnology
    • Place of Presentation
      Kauai, Hawai, US.
    • Related Report
      2013 Final Research Report
  • [Presentation] RF-MBE法によるGaN及びInGaNの成長と評価2013

    • Author(s)
      山本礼奈, 小野寺彩, 本久順一
    • Organizer
      第48回応用物理学会北海道支部/第9回日本光学会北海道地区合同学術講演会
    • Place of Presentation
      釧路市生涯学習センター(釧路市)
    • Related Report
      2013 Final Research Report
  • [Presentation] Selective area growth of GaN by RF-plasma assisted Molecular Beam Epitaxy2013

    • Author(s)
      A. Onodera, A. Yamamoto, and J. Motohisa
    • Organizer
      International Symposium on Advanced Nanodevices and Nanotechnology
    • Place of Presentation
      米国ハワイ州カウアイ シェラトンカウアイリゾート
    • Related Report
      2013 Annual Research Report
  • [Presentation] RF-MBE法によるGaN及びInGaNの成長と評価2013

    • Author(s)
      山本 礼奈、小野寺 彩、本久 順一
    • Organizer
      第48回応用物理学会北海道支部/第9回日本光学会北海道地区 合同学術講演会
    • Place of Presentation
      釧路市生涯学習センター(釧路市)
    • Related Report
      2012 Research-status Report
  • [Presentation] RF-MBE法によるGaNの選択成長2012

    • Author(s)
      小野寺彩, 山本礼奈, 本久順一
    • Organizer
      2012年秋季第73回応用物理学会学術講演会
    • Place of Presentation
      愛媛大学・松山大学(松山市)
    • Related Report
      2013 Final Research Report
  • [Presentation] RF-MBE法によるGaNの選択成長2012

    • Author(s)
      小野寺彩, 山本礼奈, 本久順一
    • Organizer
      第4回窒化物半導体結晶成長講演会
    • Place of Presentation
      東京大学(東京)
    • Related Report
      2013 Final Research Report 2012 Research-status Report
  • [Presentation] RF-MBE法によるGaNの選択成長2012

    • Author(s)
      小野寺 彩、山本 礼奈、本久 順一
    • Organizer
      2012年秋季 第73回応用物理学会学術講演会
    • Place of Presentation
      愛媛大学・松山大学(松山市)
    • Related Report
      2012 Research-status Report
  • [Remarks]

    • URL

      http://rihog4.ist.hokudai.ac.jp/~motohisa

    • Related Report
      2013 Final Research Report

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi