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2004 Fiscal Year Final Research Report Summary

Development of Ultra-High Brightness Coherent Carbon Nanotube Electron Sources by Atomic Level Surface Control

Research Project

Project/Area Number 15360019
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Thin film/Surface and interfacial physical properties
Research InstitutionNagoya University (2004)
Mie University (2003)

Principal Investigator

SAITO Yahachi  Nagoya University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (90144203)

Co-Investigator(Kenkyū-buntansha) NAKAHARA Hitoshi  Nagoya University, Graduate School of Engineering, Assistant Professor, 大学院・工学研究科, 助手 (20293649)
HATA Koichi  Mie University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (30228465)
SATO Hideki  Mie University, Faculty of Engineering, Assistant Professor, 工学部, 助手 (40324545)
Project Period (FY) 2003 – 2004
KeywordsCarbon nanotubes / Field Emission / Electron Interference / Coherency / Electron Source
Research Abstract

Robust adhesion of molecules (or clusters) for stable enhancement of electron field emission was pursued, and high coherency of an electron beam emitted from a carbon nanotube(CNT) was substantiated, as follows.
1.Field Emission from CNTs with different radii of tip curvature
Field emission microscopy(FEM) carried out for special multiwall CNTs named "d-CNTs(densest CNTs)", which have cone-shape tips with a cone angle of 19.2°, gave two kinds of FEM patterns, i.e., one is vague, speckled patterns and the other clear pentagon patterns. Inspection of the measured radii of tip curvatures and threshold voltages for field emission led to the conclusion that the speckle patterns originate from sharp tips with radius of curvature less than ca. 2 nm and the pentagon patterns originate from tips with radius curvature larger than ca. 2 nm. This conclusion is consistent with the previous FEM results for thin single-wall CNTs and thick multiwall CNTs. The types of FEM patterns from CNTs are supposed … More to be determined by whether the pentagon-pentagon distance on their tip is larger or smaller than the electron wavelength (Fermi wavelength) in CNTs, showing the large coherence length (over 10 nm) of electrons in CNTs.
2.Field emission from multiwall CNTs with RuO_2 on their surfaces
Deposition of RuO_2 clusters on multiwall CNTs was carried out by dropping RuO_4 solution. When an appropriate amount of RuO_4 solution was used, stable bright spots supposedly originating from RuO_2 clusters (1-2 nm in diameter) and reduction in threshold voltages were observed. When excess amount of RuO_4 solution was used, however, electron emission properties were deteriorated.
3.Simulation of FEM patterns
Pentagons on a CNT tip being regarded as holes where electron wave pass through, diffraction patterns formed away from the holes were simulated. By assuming the emitted electrons as a spherically propagating wave whose source was placed behind the holes, simulated patterns reproduced well the experimental patterns. This simulation supports the high coherency of electrons emitted from a CNT. Less

  • Research Products

    (34 results)

All 2005 2004 2003

All Journal Article (24 results) Book (10 results)

  • [Journal Article] Brightness of Electron Beam Emitted from a Single Pentagon on a Multiwall Carbon Nanotube Tip2004

    • Author(s)
      K.Hataほか
    • Journal Title

      Surface and Interface Analysis 36

      Pages: 506-509

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Interference Fringes Observed in Electron Emission Patterns of a Multiwalled Carbon Nanotube2004

    • Author(s)
      K.Hataほか
    • Journal Title

      J.Vac.Sci.Tech.B 22(3)

      Pages: 1312-1314

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Fabrication of Carbon Nanotube Array and Its Field Emission Properties2004

    • Author(s)
      H.Satoほか
    • Journal Title

      J.Vac.Sci.Tech.B 22(3)

      Pages: 1335-1337

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Emission enhancement by excimer laser irradiation over a web-like CNT layer2004

    • Author(s)
      J.Yotaniほか
    • Journal Title

      Jpn.J.Appl.Phys. 43(11B)

      Pages: L1459-L1462

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] カーボンナノチューブの応用2004

    • Author(s)
      齋藤弥八
    • Journal Title

      パリティ 18(8)

      Pages: 20-24

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 触媒金属組み合わせによるナノチューブ成長制御とナノチューブ先端構造2004

    • Author(s)
      齋藤弥八
    • Journal Title

      日本結晶成長学会誌 30(4)

      Pages: 285-290

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] カーボンナノチューブの機能と応用の展望2004

    • Author(s)
      齋藤弥八
    • Journal Title

      高圧ガス 41(2)

      Pages: 91-95

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 電子源用材料2004

    • Author(s)
      齋藤弥八
    • Journal Title

      新訂版 表面科学の基礎と応用

      Pages: 1071-1072

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] カーボンナノチューブ冷陰極2004

    • Author(s)
      齋藤弥八
    • Journal Title

      ナノファイバーテクノロジーを用いた高度産業発掘戦略

      Pages: 300-309

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Brightness of Electron Beam Emitted from a Single Pentagon on a Multiwall Carbon Nanotube Tip2004

    • Author(s)
      K.Hata, A.Takakura, A.Ohshita, Y.Saito
    • Journal Title

      Surface and Interface Analysis 36

      Pages: 506-509

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Interference Fringes Observed in Electron Emission Patterns of a Multiwalled Carbon Nanotube2004

    • Author(s)
      K.Hata, A.Takakura, K.Miura, A.Ohshita, Y.Saito
    • Journal Title

      J.Vac.Sci.Technol.B 22(3)

      Pages: 1312-1314

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Fabrication of Carbon Nanotube Array and Its Field Emission Properties2004

    • Author(s)
      H.Sato, H.Takegawa, H.Yamaji, H.Miyake, K.Hiramatsu, Y.Saito
    • Journal Title

      J.Vac.Sci.Technol.B 22(3)

      Pages: 1335-1337

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Emission enhancement by excimer laser irradiation over a web-like CNT layer2004

    • Author(s)
      J.Yotani, S.Uemura, T.Nagasako, H.Kurachi, H.Yamada, T.Ezaki, T.Maesoba, T.Nakao, M.Ito, T.Ishida, Y.Saito
    • Journal Title

      Jpn.J.Appl.Phys. 43(11B)

      Pages: L1459-L1462

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Prospects of Functional Properties and Application of Carbon Nanotubes[in Japanese]2004

    • Author(s)
      Y.Saito
    • Journal Title

      Kouatsu Gas(High Pressure Gas) 41(2)

      Pages: 91-95

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Materials for electron sources[in Japanese]2004

    • Author(s)
      Y.Saito
    • Journal Title

      Foundation and Application of Surface Science, New Edition

      Pages: 1071-1072

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Carbon Nanotube Cold Cathode[in Japanese]2004

    • Author(s)
      Y.Saito
    • Journal Title

      Nano Fiber Technology is Developing Advanced Industry(CMC publication)

      Pages: 300-309

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Large Are FEDs with Carbon Nanotube Emitter2003

    • Author(s)
      S.Uemuraほか
    • Journal Title

      J.Soc.Information Display 11(1)

      Pages: 145-153

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Energy Spectra of Field Emission Electrons from Multiwalled Carbon Nanotubes2003

    • Author(s)
      C.Oshimaほか
    • Journal Title

      J.Vac.Sci.Technol.B 21(4)

      Pages: 1700-1704

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Vertically Aligned Carbon Nanotubes Grown by Plasma Enhanced Chemical Vapor Deposition2003

    • Author(s)
      H.Satoほか
    • Journal Title

      J.Vac.Sci.Technol.B 21(6)

      Pages: 2564-2568

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Large Are FEDs with Carbon Nanotube Emitter2003

    • Author(s)
      S.Uemura, J.Yotani, T.Nagasako, H.Kurachi, H.Yamada, T.Ezaki, T.Maesoba, T.Nakao, Y.Saito, M.Yumura
    • Journal Title

      J.Soc.Information Display 11(1)

      Pages: 145-153

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Energy Spectra of Field Emission Electrons from Multiwalled Carbon Nanotubes2003

    • Author(s)
      C.Oshima, K.Matsuda, T.Kona, Y.Mogami, T.Yamashita, Y.Saito, K.Hata, A.Takakura
    • Journal Title

      J.Vac.Sci.Technol.B 21(4)

      Pages: 1700-1704

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Vertically Aligned Carbon Nanotubes Grown by Plasma Enhanced Chemical Vapor Deposition2003

    • Author(s)
      H.Sato, H.Takegawa, Y.Saito
    • Journal Title

      J.Vac.Sci.Technol.B 21(6)

      Pages: 2564-2568

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Application of Carbon Nanotubes[in Japanese]2003

    • Author(s)
      Y.Saito
    • Journal Title

      Parity 18(8)

      Pages: 20-24

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Growth Control of Carbon Nanotubes by Catalysts Combination and Structure Elucidation of Nanotube Tips[in Japanese]2003

    • Author(s)
      Y.Saito
    • Journal Title

      Kesshou-Seichou Gakkai-shi(J.Crystal Growth) 30(4)

      Pages: 285-290

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] カーボンナノチューブの材料科学入門2005

    • Author(s)
      齋藤弥八
    • Total Pages
      235
    • Publisher
      コロナ社
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] カーボンナノチューブの基礎と応用2004

    • Author(s)
      齋藤理一郎ほか
    • Total Pages
      320
    • Publisher
      培風館
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] フィールドエミッションディスプレイ技術2004

    • Author(s)
      齋藤弥八
    • Total Pages
      220
    • Publisher
      シーエムシー
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Foundation and Application of Carbon Nanotubes[in Japanese]2004

    • Author(s)
      R.Saito, H.Shinohara
    • Total Pages
      320
    • Publisher
      Baifuu-kan
    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] Field Emission Display Technology[in Japanese]2004

    • Author(s)
      Y.Saito
    • Total Pages
      220
    • Publisher
      CMC publication
    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] Introductory Materials Science of Carbon Nanotube[in Japanese]2004

    • Author(s)
      Y.Saito
    • Total Pages
      235
    • Publisher
      Corona Publishing
    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 21世紀版 薄膜作製応用ハンドブック2003

    • Author(s)
      権田俊一
    • Total Pages
      1330
    • Publisher
      エヌ・ティー・エス
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] ナノカーボン材料開発の新局面-加速する本格実用化2003

    • Author(s)
      篠原久典
    • Total Pages
      300
    • Publisher
      シーエムシー出版
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Handbook of Thin Film Preparation and Application, 21st century edition[in Japanese]2003

    • Author(s)
      S.Gonda
    • Total Pages
      1330
    • Publisher
      NTS Publication
    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] New Phase in Development of Nanocarbon Material-Acceleration to Practical Application-[in Japanese]2003

    • Author(s)
      H.Shinohara
    • Total Pages
      300
    • Publisher
      CMC Publication
    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2006-07-11  

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