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Hydrogen-mediated defect passivation of semiconductor materials during plasma processing

Research Project

Project/Area Number 18K03603
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 14030:Applied plasma science-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Nunomura Shota  国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 上級主任研究員 (50415725)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsプラズマ / 半導体 / 欠陥 / 水素 / シリコン / プラズマプロセス / 結晶シリコン / 水素化アモルファスシリコン / シリコン窒化膜 / パッシベーション / フィールドエフェクト / プラズマエレクトロニクス / 水素プラズマ / 水素原子 / 表面欠陥層 / 光電流 / 分光エリプソメトリ / 水素パッシベーション / ダングリングボンド
Outline of Final Research Achievements

Plasma-induced electronic defects in semiconductor materials are studied in terms of hydrogen (H) atom kinetics. In this study, we particularly focused on the interface defects in hydrogenated amorphous silicon (a-Si:H)/ crystalline silicon (c-Si) heterojunction for high-efficiency solar cell application. We detected the interface defects during growth of a-Si:H, by using a real-time photocurrent measurement technique. According to the experiments, the followings are found. The interface defects are generated under a large amount of H-atom supply particularly at the initial growth of a-Si:H. On the other hand, defects are terminated by H atom when a proper amount of H atoms are supplied and annealed at proper temperature.

Academic Significance and Societal Importance of the Research Achievements

太陽電池やイメージセンサー等の半導体デバイスの性能は、デバイス内の欠陥によって制限される。通常、これらの欠陥は、デバイス作製に用いるプラズマプロセスによって発生することが知られているが、その詳細なメカニズムは理解されていなかった。そこで、本研究では、太陽電池用途の水素化アモルファスシリコンと結晶シリコンのヘテロ接合を取り上げ、欠陥をデバイス作製時にその場でリアルタイムに検出し、欠陥の発生と修復のメカニズムを解明する研究を進めた。得られた結果として、欠陥の発生と修復には水素原子が密接に関与しており、水素原子の供給を適切に制御することで低欠陥界面が実現され、デバイスの高性能化に繋がることを示した。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (29 results)

All 2021 2020 2019 2018

All Journal Article (9 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 9 results) Presentation (19 results) (of which Int'l Joint Research: 6 results,  Invited: 9 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Real-time monitoring of surface passivation of crystalline silicon during growth of amorphous and epitaxial silicon layer2020

    • Author(s)
      Nunomura Shota、Sakata Isao、Sakakita Hajime、Koga Kazunori、Shiratani Masaharu
    • Journal Title

      Journal of Applied Physics

      Volume: 128 Issue: 3 Pages: 033302-033302

    • DOI

      10.1063/5.0011563

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydrogen-induced defects in crystalline silicon during growth of an ultrathin a-Si:H layer2020

    • Author(s)
      Nunomura Shota、Sakata Isao、Matsubara Koji
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 59 Issue: SH Pages: SHHE05-SHHE05

    • DOI

      10.35848/1347-4065/ab7478

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Role of silicon surface, polished 〈100〉 and 〈111〉 or textured, on the efficiency of double‐sided TOPCon solar cells2020

    • Author(s)
      Lozac'h Micka?l、Nunomura Shota
    • Journal Title

      Progress in Photovoltaics: Research and Applications

      Volume: 28 Issue: 10 Pages: 1001-1011

    • DOI

      10.1002/pip.3304

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Double-sided TOPCon solar cells on textured wafer with ALD SiOx layer2020

    • Author(s)
      Lozac'h Mickael、Nunomura Shota、Matsubara Koji
    • Journal Title

      Solar Energy Materials and Solar Cells

      Volume: 207 Pages: 110357-110357

    • DOI

      10.1016/j.solmat.2019.110357

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] In-situ detection of interface defects in a-Si:H/c-Si heterojunction during plasma processing2019

    • Author(s)
      Nunomura Shota、Sakata Isao、Matsubara Koji
    • Journal Title

      Applied Physics Express

      Volume: 12 Issue: 5 Pages: 051006-051006

    • DOI

      10.7567/1882-0786/ab128b

    • Related Report
      2019 Research-status Report 2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Formation of electronic defects in crystalline silicon during hydrogen plasma treatment2019

    • Author(s)
      Nunomura Shota、Sakata Isao、Matsubara Koji
    • Journal Title

      AIP Advances

      Volume: 9 Issue: 4 Pages: 045110-045110

    • DOI

      10.1063/1.5089202

    • Related Report
      2019 Research-status Report 2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Roles of hydrogen atoms in p-type Poly-Si/SiOx passivation layer for crystalline silicon solar cell applications2019

    • Author(s)
      Lozac’h Mickael、Nunomura Shota、Umishio Hiroshi、Matsui Takuya、Matsubara Koji
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 58 Issue: 5 Pages: 050915-050915

    • DOI

      10.7567/1347-4065/ab14fe

    • Related Report
      2019 Research-status Report 2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Plasma-Induced Electronic Defects: Generation and Annihilation Kinetics in Hydrogenated Amorphous Silicon2018

    • Author(s)
      Shota Nunomura, Isao Sakata, and Koji Matsubara
    • Journal Title

      Phys. Rev. Applied

      Volume: 10 Issue: 5

    • DOI

      10.1103/physrevapplied.10.054006

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Passivation property of ultrathin SiOx:H / a-Si:H stack layers for solar cell applicatio2018

    • Author(s)
      Mickael Lozac’h, Shota Nunomura, Hitoshi Sai, and Koji Matsubara
    • Journal Title

      Solar Energy Materials and Solar Cells

      Volume: 185 Pages: 5-5

    • DOI

      10.1016/j.solmat.2018.05.004

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] [第12回シリコンテクノロジー分科会論文賞受賞記念講演] c-Si表面パッシベーションにおけるプラズマ誘起欠陥とバンド構造2021

    • Author(s)
      布村 正太他
    • Organizer
      2021年 第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Plasma-induced electronic defects: formation and recovery kinetics in silicon2020

    • Author(s)
      布村 正太
    • Organizer
      4th Asia Pacific Conference on Plasma Physics
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] プラズマ誘起欠陥の発生と修復 ~結晶シリコンの表面パッシベーションへの影響~2020

    • Author(s)
      布村 正太他
    • Organizer
      2020年 第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] プラズマ誘起欠陥の発生と修復 ~Arイオン照射の効果~2020

    • Author(s)
      布村 正太、中根一也、堤 隆嘉、松原 浩司、堀 勝
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] プラズマ誘起欠陥の発生と修復 ~c-Siへの水素拡散と欠陥~2020

    • Author(s)
      布村 正太、坂田 功、松原 浩司
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] シリコンにおけるプラズマ誘起欠陥の発生と修復2020

    • Author(s)
      布村 正太
    • Organizer
      応用物理学会シリコンテクノロジー分科会223回研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] In-situ monitoring of hydrogen plasma-induced electronic defects in silicon2019

    • Author(s)
      S. Nunomura, I. Sakata, K. Matsubara
    • Organizer
      The 2019 Spring Meeting of the European Materials Research Society (E-MRS)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Defect generation and annihilation in hydrogenated amorphous silicon2019

    • Author(s)
      S. Nunomura, I. Sakata, K. Matsubara
    • Organizer
      the 24th International Symposium on Plasma Chemistry (ISPC 24)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Generation and annihilation kinetics of plasma-induced electronic defects in hydrogenated amorphous silicon2019

    • Author(s)
      S. Nunomura, I. Sakata, K. Matsubara
    • Organizer
      The Joint Conference of XXXIV International Conference on Phenomena in Ionized Gases (XXXIV ICPIG) and the 10th International Conference on Reactive Plasmas (ICRP-10)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] プラズマ誘起欠陥の発生と修復 ~欠陥抑止半導体プラズマプロセスにむけ~2019

    • Author(s)
      布村 正太、坂田 功、松原 浩司
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] シランプラズマ中の気相化学と表面反応2019

    • Author(s)
      布村 正太、
    • Organizer
      東北大学電気通信研究所 共同プロジェクト研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Defect kinetics in c-Si during ultrathin a-Si:H layer growth by PECVD2019

    • Author(s)
      S. Nunomura, I. Sakata, K. Matsubara
    • Organizer
      The 41st International Symposium on Dry Process (DPS2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] ヘテロ接合太陽電池作製時における界面欠陥のその場評価2019

    • Author(s)
      布村 正太、坂田 功、松原 浩司
    • Organizer
      2019年 第66回応用物理学会春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] プラズマ誘起欠陥の発生と修復 ~結晶シリコン内の水素と欠陥~2019

    • Author(s)
      布村 正太、坂田 功、松原 浩司
    • Organizer
      2019年 第66回応用物理学会春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] High-efficiency silicon heterojunction solar cells ~ defect kinetics during solar cell fabrication~2019

    • Author(s)
      Shota Nunomura
    • Organizer
      Symposium on Advanced Solar Cells 2019
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] プラズマ誘起欠陥:モニタリングと物理化学2019

    • Author(s)
      布村 正太、坂田 功、松原 浩司
    • Organizer
      第36回 プラズマプロセシング研究会/第31回 プラズマ材料科学シンポジウム
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] プラズマ誘起欠陥の発生と修復 ~結晶シリコン上でのモニタリング~2018

    • Author(s)
      布村 正太、坂田 功、松原 浩司
    • Organizer
      2018年 第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Defect kinetics in high-efficiency silicon heterojunction solar cells2018

    • Author(s)
      S. Nunomura, M. Lozac’h, I. Sakata and K. Matsubara
    • Organizer
      the 28th Annual Meeting of MRS-J
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 水素プラズマ照射時の材料内欠陥のその場モニタリング2018

    • Author(s)
      布村 正太
    • Organizer
      第35回 プラズマ・核融合学会 年会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Patent(Industrial Property Rights)] パッシベーション膜2021

    • Inventor(s)
      布村正太
    • Industrial Property Rights Holder
      国立研究開発法人産業技術総合研究所
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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