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新規カルコパイライト材料の成長方位を制御するメカニズムの解明と太陽電池応用

Research Project

Project/Area Number 15J10424
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Electronic materials/Electric materials
Research InstitutionWaseda University

Principal Investigator

宇留野 彩  早稲田大学, 先進理工学研究科, 特別研究員(DC2)

Project Period (FY) 2015-04-24 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2016: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2015: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywords結晶工学 / 近接昇華法 / カルコパイライト / 太陽電池
Outline of Annual Research Achievements

2年度目は、「Ag(Ga,Al)Te2混晶の作製によるバンドギャップ制御」を目的としていた。この内容についてはすでに1年度目から取り組むことができたため、計画を立案した時点より進展したものとなった。本年度はさらに別の原料として、Ga2Te3粉末とAgAlTe2粉末を混ぜ合わせたものを用いた場合も、バンドギャップ制御が行えるのかについて検討した。その結果、原料に用いる化合物を変化させた場合でも、従来用いた材料の組み合わせの場合と同様な結晶性のものが作製でき、Ag(Ga,Al)Te2薄膜のバンドギャップを制御することに成功した。Ga2Te3の方がAgGaTe2よりも原料コストが低いため、原料にAgAlTe2とGa2Te3の混合粉末を用いた方が低コスト膜の作製が可能となる。これらの研究成果を、“PSS C、13, 413 (2016)”にて報告を行った。
また、Ag/Ga供給比を変化させることにより、電気的特性や光学的特性が変化することが、1年度目の研究から明らかとなったが、本年度はさらに、詳しい解析を行った。その結果、膜内のAg/Ga比の変化に伴い、様々な副生成物の存在や表面形態の変化が明らかになった。そしてGa2Te3の割合が多いとAgGaTe2とAgGa5Te8の混合物が、Ga2Te3の割合が少ないと、AgGaTe2とAg2Teの混合物が作製されることが明らかとなった。これらの傾向は状態図を基にした解析結果と一致し、さらに包晶反応や共晶反応が起きることで、副生成物が形成されるという知見を得ることにも成功した。これらの研究成果を、“J. Electron. Mater.”,“PSS A 214, 1600284 (2017)”にて報告し、“The 2016 U.S. Workshop”“第64回応用物理学会春季学術講演会”や“平成29年電気学会全国大会”で口頭発表した。

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (18 results)

All 2017 2016 2015

All Journal Article (6 results) (of which Peer Reviewed: 5 results,  Acknowledgement Compliant: 4 results) Presentation (12 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] Structural and electric properties of AgGaTe2 layers prepared using mixed Source of Ag2Te and Ga2Te32017

    • Author(s)
      A. Uruno, and M. Kobayashi
    • Journal Title

      Phys. Status Solidi A

      Volume: 214 Issue: 1 Pages: 1600284-1600284

    • DOI

      10.1002/pssa.201600284

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] High quality AgGaTe2 layers on Si substrates with Ag2Te buffer layers2016

    • Author(s)
      A. Uruno, and M. Kobayashi
    • Journal Title

      J. Electron. Mater.

      Volume: 45 Issue: 9 Pages: 4692-4696

    • DOI

      10.1007/s11664-016-4548-8

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Crystallographic and optical characterizations of Ag(Ga,Al)Te2 layers grown on c-plane sapphire substrates by closed space sublimation2016

    • Author(s)
      A. Uruno, Y. Takeda, T. Inoue, and M. Kobayashi
    • Journal Title

      Phys. Status Solidi C

      Volume: 13 Issue: 7-9 Pages: 413-416

    • DOI

      10.1002/pssc.201510269

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] The growth of AgGaTe2 layer on Si substrate by two-step closed space sublimation and its application to solar cell fabrications2016

    • Author(s)
      A. Uruno, and M. Kobayashi
    • Journal Title

      Proc. 43rd IEEE Photovolt. Spec. Conf.

      Volume: - Pages: 0524-0529

    • DOI

      10.1109/pvsc.2016.7749649

    • Related Report
      2016 Annual Research Report
    • Acknowledgement Compliant
  • [Journal Article] The crystallographic characterization of AgGaTe2, AgAlTe2, and Ag(Ga,Al)Te2 grown by closed space sublimation2015

    • Author(s)
      A. Uruno, A. Usui, T. Inoue, Y. Takeda, and M. Kobayashi
    • Journal Title

      J. Electron. Mater.

      Volume: 44 Issue: 9 Pages: 3013-3017

    • DOI

      10.1007/s11664-015-3733-5

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The growth of AgGaTe2 layers on glass substrates with Ag2Te buffer layer by closed space sublimation method2015

    • Author(s)
      A. Uruno, A. Usui, Y. Takeda, T. Inoue, and M. Kobayashi
    • Journal Title

      Phys. Status Solidi C

      Volume: 12 Issue: 6 Pages: 508-511

    • DOI

      10.1002/pssc.201400267

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Presentation] AgGaTe2薄膜内における副生成物が光学的特性に与える影響2017

    • Author(s)
      鬼界伸一郎,宇留野彩,笹原宏希
    • Organizer
      平成29年電気学会全国大会
    • Place of Presentation
      富山、日本
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] AgGaTe2膜内のAg/Ga比が膜質に与える影響と状態図による解析2017

    • Author(s)
      宇留野彩,鬼界伸一郎、末次由里、桜川陽平、小林正和
    • Organizer
      第64回応用物理学会春季学術講演会
    • Place of Presentation
      横浜、日本
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Nucleation of Cu2Te layer by a closed space sublimation method toward the growth of Te based Chalcopyrite2017

    • Author(s)
      Y. Sakurakawa, A. Uruno, and M. Kobayashi
    • Organizer
      44st Conference on the Physics and Chemistry of Surfaces and Interfaces
    • Place of Presentation
      Santa Fe, NM, USA
    • Year and Date
      2017-01-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High quality AgGaTe2 layers formed from Ga2Te3/Ag2Te two layer structures2016

    • Author(s)
      A. Uruno, Y. Sakurakawa, and M. Kobayashi
    • Organizer
      The 2016 U.S. Workshop on the Physics and Chemistry of II-VI Materials
    • Place of Presentation
      Baltimore, MD, USA
    • Year and Date
      2016-10-17
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 近接昇華法によるGa2Te3/Ag2Te積層構造からのAgGaTe2薄膜作製2016

    • Author(s)
      宇留野彩,桜川陽平,小林正和
    • Organizer
      第77回応用物理学会秋季学術講演会
    • Place of Presentation
      新潟、日本
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] Growth and solar cell applications of AgGaTe2 layers by closed space sublimation using the mixed source of Ag2Te and Ga2Te32016

    • Author(s)
      A. Uruno, S. Kikai, Y. Suetsugu, and M. Kobayashi
    • Organizer
      The 43rd International Symposium on Compound Semiconductors
    • Place of Presentation
      富山、日本
    • Year and Date
      2016-06-26
    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The growth of AgGaTe2 layer on Si substrate by two-step closed space sublimation and its application to solar cell fabrications2016

    • Author(s)
      A. Uruno, and M. Kobayashi
    • Organizer
      The 43rd IEEE Photovoltaic Specialists Conference
    • Place of Presentation
      Portland, OR, USA
    • Year and Date
      2016-06-05
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The growth of AgGaTe2 layer on Si substrate by two-step closed space sublimation and its application to solar cell fabrications2016

    • Author(s)
      A. Uruno and M. Kobayashi
    • Organizer
      The 43rd IEEE Photovoltaic Specialists Conference
    • Place of Presentation
      Portland, USA
    • Year and Date
      2016-06-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ag2Te中間層を導入したSi基板上のAgGaTe2作製と太陽電池応用2016

    • Author(s)
      宇留野彩,小林正和
    • Organizer
      第63回応用物理学会春季学術講演会
    • Place of Presentation
      東京、日本
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] 低温フォトルミネッセンス法によるAgGaTe2薄膜の光学的特性評価2016

    • Author(s)
      鬼界伸一郎,宇留野彩,末次由里
    • Organizer
      平成28年電気学会全国大会
    • Place of Presentation
      仙台、日本
    • Year and Date
      2016-03-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] High quality AgGaTe2 layers on Si substrates with Ag2Te buffer layers2015

    • Author(s)
      A. Uruno and M. Kobayashi
    • Organizer
      The 2015 U.S. Workshop on the Physics and Chemistry of II-VI Materials
    • Place of Presentation
      Chicago, USA
    • Year and Date
      2015-10-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Crystallographic and Optical Characterizations of Ag(Ga,Al)Te2 Layers Grown on c-plane Sapphire Substrates by Closed Space Sublimation2015

    • Author(s)
      A. Uruno, Y. Takeda, T. Inoue, and M. Kobayashi
    • Organizer
      The 17th International Conference on II-VI Compound and Related Materials
    • Place of Presentation
      Paris, France
    • Year and Date
      2015-09-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research

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Published: 2015-11-26   Modified: 2024-03-26  

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