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Epitaxial abrupt interfaces of multinary compound semiconductors

Research Project

Project/Area Number 20K05354
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 30010:Crystal engineering-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Nishinaga Jiro  国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 主任研究員 (90454058)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2023: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2020: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Keywords多元系化合物半導体 / 結晶成長 / 電子デバイス / 光デバイス / 分子線エピタキシー / 太陽電池 / MBE / MEE / ヘテロ界面 / 低温結晶成長 / 量子デバイス / 低温成長 / III-V族化合物半導体 / I-III-VI2族化合物半導体
Outline of Research at the Start

多元系化合物半導体は未知なる可能性を秘めた材料群であり、それらの積層構造による電子・光デバイスは、高機能化のみならず、製品の製造・使用過程における環境負荷の低減に大きく期待できる。多元系化合物半導体ヘテロ界面は成膜時における構成元素の熱拡散によって、急峻なデバイス構造の作製が非常に困難である。本研究は高純度金属材料の交互供給によって、高品質な結晶成長を低温においても実現させ、急峻な多元系化合物半導体ヘテロ構造を作製することを目標とする。

Outline of Final Research Achievements

Multinary-compound semiconductors have potentials for many applications, and electronic and optical devices made from multinary compounds expect to achieve high performance, high functionality, and low environmental impact. However, the formation of their heterointerfaces, which are essential for device applications, has been extremely difficult due to thermal diffusion and chemical reactions between the elements. In this research, we succeeded in suppressing segregation and thermal diffusion during deposition by precisely controlling the compound composition, and abrupt heterointerfaces were achieved. High efficiency solar cells were realized using the abrupt heterointerfaces.

Academic Significance and Societal Importance of the Research Achievements

多元系化合物半導体エピタキシャル成長の研究は、30年以上前に国際的に盛んであったが、ガラス基板上多結晶太陽電池がトレンドとなって以降、研究の進展はまったくない。本研究によって、変換効率10%であった単結晶Cu(In,Ga)Se2太陽電池が、変換効率21.3%に改善された。単結晶化されたCu(In,Ga)Se2は、表面ポテンシャルが均一となり、基礎的物性の評価に最適といえる。本研究は多元系化合物半導体ヘテロ界面の基礎研究であり、今後、急峻なヘテロ界面を利用した量子効果デバイスへの展開が期待される。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (35 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (8 results) Journal Article (11 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 9 results,  Open Access: 2 results) Presentation (16 results) (of which Int'l Joint Research: 8 results,  Invited: 4 results)

  • [Int'l Joint Research] HZB(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Luxembourg(ルクセンブルク)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Helmholtz-Zentrum-Berlin/RWTH Aachen(ドイツ)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] University of Luxembourg(ルクセンブルク)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] Helmholtz-Zentrum Berlin(ドイツ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] University of Luxembourg(ルクセンブルク)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Helmholtz-Zentrum Berlin/RWTH Aachen University(ドイツ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University du Luxembourg(ルクセンブルク)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Comparison of polycrystalline and epitaxial Cu(In, Ga)Se2 solar cells with conversion efficiencies of more than 21%2024

    • Author(s)
      Nishinaga Jiro、Kamikawa Yukiko、Sugaya Takeyoshi、Ishizuka Shogo
    • Journal Title

      Solar Energy Materials and Solar Cells

      Volume: 269 Pages: 112791-112791

    • DOI

      10.1016/j.solmat.2024.112791

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Annealing effects on Cu(In,Ga)Se2 solar cells irradiated by high-fluence proton beam2023

    • Author(s)
      Nishinaga Jiro、Togawa Manabu、Miyahara Masaya、Itabashi Kosuke、Okumura Hironori、Imura Masataka、Kamikawa Yukiko、Ishizuka Shogo
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 62 Issue: SK Pages: SK1014-SK1014

    • DOI

      10.35848/1347-4065/acc53b

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] On the Origin of Tail States and Open Circuit Voltage Losses in Cu(In,Ga)Se22023

    • Author(s)
      Ramirez Omar、Nishinaga Jiro、Dingwell Felix、Wang Taowen、Prot Aubin、Wolter Max Hilaire、Ranjan Vibha、Siebentritt Susanne
    • Journal Title

      Solar RRL

      Volume: 7 Issue: 13 Pages: 2300054-2300054

    • DOI

      10.1002/solr.202300054

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Impacts of KF Post-Deposition Treatment on the Band Alignment of Epitaxial Cu(In,Ga)Se2 Heterojunctions2022

    • Author(s)
      Nagai Takehiko、Nishinaga Jiro、Tampo Hitoshi、Kim Shinho、Hirayama Kazuhiro、Matsunobe Tatsuo、Chen Guanzhong、Ide Yuya、Ishizuka Shogo、Shibata Hajime、Niki Shigeru、Terada Norio
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 14 Issue: 14 Pages: 16780-16790

    • DOI

      10.1021/acsami.1c21193

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 分子線エピタキシー法によるIII-V、I-III-VI族化合物半導体の結晶成長2022

    • Author(s)
      西永慈郎
    • Journal Title

      真空ジャーナル

      Volume: 181 Pages: 13-17

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cu(In,Ga)Se2太陽電池の放射線耐性2022

    • Author(s)
      西永慈郎、外川学、宮原正也
    • Journal Title

      応用物理学会結晶工学分科会第156回研究会テキスト

      Volume: 156 Pages: 42-49

    • Related Report
      2022 Research-status Report
  • [Journal Article] Effects of alkali-metal incorporation into epitaxial Cu(In,Ga)Se2 solar cells prepared by molecular beam epitaxy2022

    • Author(s)
      Nishinaga Jiro、Ishizuka Shogo
    • Journal Title

      Thin Solid Films

      Volume: 741 Pages: 139034-139034

    • DOI

      10.1016/j.tsf.2021.139034

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Optoelectronic Inactivity of Dislocations in Cu(In,Ga)Se2 Thin Films2021

    • Author(s)
      Abou-Ras Daniel、Nikolaeva Aleksandra、Krause Maximilian、Korte Lars、Stange Helena、Mainz Roland、Simsek Sanli Ekin、van Aken Peter A.、Sugaya Takeyoshi、Nishinaga Jiro
    • Journal Title

      Physica Status Solidi Rapid Research Letters

      Volume: 15 Issue: 7 Pages: 2100042-2100042

    • DOI

      10.1002/pssr.202100042

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Crystalline Characterisitics of Epitaxial Cu(In,Ga)Se2 Layers on GaAs (001) Substrates2020

    • Author(s)
      Nishinaga Jiro、Sugaya Takeyoshi
    • Journal Title

      Proceedings of 47th IEEE Photovoltaic Specialists Conference (PVSC)

      Volume: 2020 Pages: 2251-2257

    • DOI

      10.1109/pvsc45281.2020.9300962

    • Related Report
      2020 Research-status Report
  • [Journal Article] Efficient Narrow Band Gap Cu(In,Ga)Se2 Solar Cells with Flat Surface2020

    • Author(s)
      Kamikawa Yukiko、Nishinaga Jiro、Shibata Hajime、Ishizuka Shogo
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 12 Issue: 40 Pages: 45485-45492

    • DOI

      10.1021/acsami.0c11203

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] A comparative study of the effects of light and heavy alkali-halide postdeposition treatment on CuGaSe2 and Cu(In,Ga)Se2 thin-film solar cells2020

    • Author(s)
      S. Ishizuka, N. Taguchi, J. Nishinaga, Y. Kamikawa, H. Shibata
    • Journal Title

      Solar Energy

      Volume: 211 Pages: 1092-1101

    • DOI

      10.1016/j.solener.2020.10.048

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 高Ga組成Cu(In,Ga)Se2太陽電池の結晶成長2024

    • Author(s)
      西永慈郎、上川由紀子、Daniel Abou-ras、石塚尚吾
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Microstructure-property relationships in epitaxial Cu(In,Ga)Se2 solar cell absorbers2023

    • Author(s)
      Daniel Abou-ras, Jiro Nishinaga, Ulrike Bloeck, Henrik Prell, Sinju Thomas, Michael Tovar, Dan R. Wargulski, Harvey Guthrey, Pat Trimby, Aimo Winkelmann, Yukiko Kamikawa, Takeyoshi Sugaya, Shogo Ishizuka
    • Organizer
      IEEE PVSC 50th
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The role of grain boundaries and dislocations in various solar-cell materials on the corresponding device performance2023

    • Author(s)
      Daniel Abou-ras, Sinju Thomas, Dan Wargulski, Jiro Nishinaga
    • Organizer
      Horizons symposium: Electronic & Energy materials
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High radiation tolerance of 10um thick Cu(In,Ga)Se2 diodes2023

    • Author(s)
      西永慈郎、外川学、石塚尚吾
    • Organizer
      第42回電子材料シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Widegap Cu(In,Ga)Se2 エピタキシャル成長に関する考察2023

    • Author(s)
      西永慈郎
    • Organizer
      第52回結晶成長国内会議
    • Related Report
      2023 Annual Research Report
  • [Presentation] Cu(In,Ga)Se2 detectors with high radiation tolerance2023

    • Author(s)
      Jiro Nishinaga
    • Organizer
      The 25th Takayanagi Kenjiro Memorial Symposium
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Radiation tolerance of Cu(In,Ga)Se2 solar cells irradiated by proton beam2022

    • Author(s)
      Jiro Nishinaga, Manabu Togawa, Shogo Ishizuka,
    • Organizer
      PVSEC-33, Nagoya (Japan)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Chalcogenide semiconductor detector with high radiation tolerance2022

    • Author(s)
      Jiro Nishinaga
    • Organizer
      Physics in LHC and Beyond, Matsue (Japan)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Cu(In,Ga)Se2太陽電池の放射線耐性2022

    • Author(s)
      西永慈郎
    • Organizer
      応用物理学会結晶工学分科会第156回研究会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Effects of alkali-metal doping on epitaxial Cu(In,Ga)Se2 solar cells2021

    • Author(s)
      Jiro Nishinaga, Shogo Ishizuka
    • Organizer
      E-MRS 2021 Spring Meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] High efficiency epitaxial CIGS solar cells grown on p-type GaAs substrates2020

    • Author(s)
      Jiro Nishinaga, Takeyoshi Sugaya
    • Organizer
      Virtual Chalcogenide PV Conference 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 多元系化合物半導体ヘテロ構造の結晶成長2020

    • Author(s)
      西永慈郎
    • Organizer
      第12回ナノ構造・エピタキシャル成長講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Ag添加によるCu(In,Ga)Se2太陽電池の高効率化2020

    • Author(s)
      西永慈郎、石塚尚吾、上川由紀子、鯉田崇、柴田肇
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 多元系化合物半導体ヘテロ界面の結晶成長2020

    • Author(s)
      西永慈郎
    • Organizer
      第49回日本結晶成長国内会議
    • Related Report
      2020 Research-status Report
  • [Presentation] Crystalline and electrical properties of epitaxial Cu(In,Ga)Se2 layers on GaAs substrates2020

    • Author(s)
      Jiro Nishinaga, Takeyoshi Sugaya
    • Organizer
      2020 IEEE PVSE-47
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Epitaxial Cu(In,Ga)Se2太陽電池のアルカリ金属添加効果2020

    • Author(s)
      西永慈郎、石塚尚吾
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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