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Fabrication of thin films of amorphous carbon nitride and the elucidation of mechanism of film deposition

Research Project

Project/Area Number 16K04958
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Thin film/Surface and interfacial physical properties
Research InstitutionNagaoka University of Technology

Principal Investigator

Ito Haruhiko  長岡技術科学大学, 工学研究科, 准教授 (70201928)

Research Collaborator Saitoh Hidetoshi  
Ogaki Takeshi  
Tsudome Hiroki  
Kumakura Motoki  
Mogi Nobuyoshi  
Hiramatsu Kennya  
Iizawa Yoshiki  
Sekizaki Chitose  
Karoh Yoshinori  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsアモルファス窒化炭素 / プラズマCVD / XPS分析 / 結合状態解析 / アモルファス窒化炭素薄膜 / マイクロ波プラズマCVD / 高周波プラズマCVD / X線光電子スペクトル / 元素分析 / 高窒素含有率 / 化学結合状態解析 / プラズマCVD / 高周波プラズマ / マイクロ波プラズマ / 構造解析 / XPS / 結合解析 / 表面・界面物性 / レーザー分光 / フリーラジカル
Outline of Final Research Achievements

Amorphous carbon nitride (a-CNx) films have been expected as the potential candidate of the ultrahard caoting material. Since the length of the C-N single bond (0.147 nm) is shorter than that of the sp3 C-C bond (0.154 nm), it is expected that the higher density than that of the diamond-like carbon (DLC) can be obtained. The purpose of the synthesis will be that the [N]/([N]+[C]) ratio of films makes as close as possible to the theoretical value, 0.57. In this study, high [N]/([N]+[C]) ratios of 0.32-0.49 have been obtained using the microwave or radio-frequency plasma CVD apparatus where trace amounts (7mTorr) of CH3CN,C6H6, or n-C6H14 were admixed into the N2 gas of 0.3 Torr. The chemical bonding states of films were analyzed by using the XPS with narrow scan.

Academic Significance and Societal Importance of the Research Achievements

本研究成果の学術的・社会的意義は以下のとおりである。これまでN2と有機化合物(主にCH4)の混合気体に対する放電プラズマCVDでは、膜の[N]/([N]+[C])比は0.1程度いかに抑えられていた。本研究成果の核心はその比を0.5近くにまで引き上げたことで、有機化合物蒸気の分圧をN2の分圧に比べて極端に低く抑えるという反応設計が機能していることを示している。これらの高窒素含有膜の結合状態をXPSで解析された例はこれまで報告されておらず、今後実用化に向けた取り組みにおいて基礎データを提供する意義がある。本研究成果をまとめた論文に対し、「窒化炭素膜の実用化への扉を開いた」とのコメントがあった。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (21 results)

All 2019 2018 2017 2016

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 3 results,  Acknowledgement Compliant: 3 results) Presentation (14 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Structural analysis of hydrogenated amorphous carbon nitride films formed from the decomposition of CH3CN in the microwave discharge flow of Ar2019

    • Author(s)
      Haruhiko Ito, Chitose Sekizaki, Sho Fukuhara, Hidetoshi Saitoh
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 58 Issue: SE Pages: SEED02-SEED02

    • DOI

      10.7567/1347-4065/ab19a2

    • NAID

      210000156102

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative NEXAFS and solid-stateNMR studies of sp3/(sp2+sp3) ratio in the hydrogenated DLC films2017

    • Author(s)
      X. L. Zhou, S. Tunmee, T. Suzuki, P. Phothongkam, K. Kanda, K. Komatsu, S. Kawahara,
    • Journal Title

      Diamond and Related Materials

      Volume: 73 Pages: 232-240

    • DOI

      10.1016/j.diamond.2016.09.026

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Structural analysis of amorphous carbon films by spectroscopic ellipsometry, RBS/ERDA, and NEXAFS2017

    • Author(s)
      X. L. Zhou, T. Suzuki, H. Nakajima, K. Komatsu, K. Kanda, H. Ito, and H. Saitoh,
    • Journal Title

      Applied Physics Letters

      Volume: 110 Issue: 20 Pages: 201902-201902

    • DOI

      10.1063/1.4983643

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fabrication of Hydrogenated Amorphous Silicon Carbide Films from Decomposition of Hexamethyldisilane with Microwave Discharge Flow of Ar2016

    • Author(s)
      H. Ito, M. Kumakura, T. Suzuki, M. Niibe, K. Kanda, and H. Saitoh
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 55 Issue: 6S2 Pages: 06HC01-06HC01

    • DOI

      10.7567/jjap.55.06hc01

    • NAID

      210000146710

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Contribution of CN(X2Σ+) Radicals to N Atoms of Hydrogenated Amorphous Carbon Nitride Films Formed from the Microwave Discharge of the Gas Mixture of N2 and CH3CN2016

    • Author(s)
      H. Ito, N. Mogi, K. Okada, and H. Tsudome
    • Journal Title

      Diamond and Related Materials

      Volume: 63 Pages: 125-131

    • DOI

      10.1016/j.diamond.2015.10.029

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Changes of Chemical Structure of Hydrogenated Amorphous Silicon Carbide Films with the Application of Radio-Frequency Bias Voltages during Chemical Vapor Deposition2016

    • Author(s)
      H. Ito, T. Ogaki, M. Kumakura, S. Saeki, T. Suzuki, H. Akasaka, H. Saitoh
    • Journal Title

      Diamond and Related Materials

      Volume: 66 Pages: 1-9

    • DOI

      10.1016/j.diamond.2016.03.006

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Investigation of Pitting Corrosion of Diamond-like Carbon Films Using Synchrotron-based Spectromicroscopy2016

    • Author(s)
      S. Tunmee, P. Photongkam, C. Euaruksakul, H. Takamatsu, X. L. Zhou, P. Wongpanya, K. Komatsu, K. Kanda, H. Ito, and H. Saitoh
    • Journal Title

      Journal of Applied Physics

      Volume: 120 Issue: 19 Pages: 195303-195303

    • DOI

      10.1063/1.4967799

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Preparation and structural analysis of hydrogenated amorphous carbon nitride films with high nitrogen contents2019

    • Author(s)
      Haruhiko Ito, Yoshiki Iizawa, Yohsinori Karoh, Teppei Tsuda, Hidetoshi Saitoh
    • Organizer
      ISPlasma2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Arのマイクロ波放電フローによるC2H2の解離励起過程ー 超励起状態を経由した解離機構2019

    • Author(s)
      伊藤治彦、津留紘樹
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Structural analysis of hydrogenated amorphous carbon nitride films formed from the decomposition of CH3CN in the microwave discharge flow of Ar2018

    • Author(s)
      Chitose Sekizaki, Sho Fukuhara, Hidetoshi Saitoh, Haruhiko Ito
    • Organizer
      DPS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 有機化合物-N2-Ar混合気体高周波プラズマCVDによる高窒素含有a-CNx:H薄膜の作製と構造解析2018

    • Author(s)
      飯澤仁規, 斎藤秀俊, 伊藤治彦
    • Organizer
      2018年第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] CH3CNのArマイクロ波プラズマ分解で生成したa-CNx:H薄膜の構造解析2018

    • Author(s)
      関崎千歳,董福,斎藤秀俊,伊藤治彦
    • Organizer
      2018年第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ベンゼン-N2-Ar混合気体の高周波プラズマCVDによる高窒素含有a-CNx:H薄膜の作製と構造解析2018

    • Author(s)
      家老克徳,飯澤仁規,斎藤秀俊,伊藤治彦
    • Organizer
      2018年第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 有機化合物-N2-Ar混合気体高周波プラズマCVDによる高窒素含有a-CNx:H薄膜の作製と構造解析2018

    • Author(s)
      飯澤仁規, 斎藤秀俊, 伊藤治彦
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] CH3CNのArマイクロ波プラズマ分解で生成したa-CNx:H薄膜の構造解析2018

    • Author(s)
      関崎千歳,董福,斎藤秀俊,伊藤治彦
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] Si(CH3)4の放電分解によるa-SiCx:H薄膜の形成 ― 表面O原子と膜厚に関する考察2017

    • Author(s)
      伊藤治彦
    • Organizer
      応用物理学会
    • Place of Presentation
      神奈川県横浜市(パシフィコ横浜)
    • Year and Date
      2017-03-16
    • Related Report
      2016 Research-status Report
  • [Presentation] ヘキサンとN2の混合気体マイクロ波放電を用いて作製した高窒素含有a-CNx:H膜の結合状態解析2017

    • Author(s)
      伊藤治彦、平松拳也、董福、斉藤秀俊
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] CH3CN-N2-Ar混合気体高周波プラズマCVDによる高窒素含有a-CNx:H薄膜の作製と構造解析2017

    • Author(s)
      飯澤仁規, 齋藤秀俊, 伊藤治彦
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] CH3CNのArマイクロ波プラズマ分解で生成したa-CNx:H薄膜の構造解析2017

    • Author(s)
      関崎千歳,董福,斎藤秀俊,伊藤治彦
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 高周波プラズマCVDによる高窒素含有a-CNx:H薄膜の形成と構造解析2016

    • Author(s)
      飯澤仁規, 平松拳也, 齋藤秀俊, 伊藤治彦
    • Organizer
      応用物理学会
    • Place of Presentation
      新潟県新潟市(朱鷺メッセ)
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] CN(X2Σ+) Radicals as the Precursor of Hydrogenated Amorphous Carbon Nitride Films2016

    • Author(s)
      H. Ito
    • Organizer
      7-th International Workshop on Plasma Specrtroscopy
    • Place of Presentation
      愛知県犬山市(名鉄ホテル)
    • Year and Date
      2016-06-29
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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