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Study on light emission from a carbon nanotube during electron field emission

Research Project

Project/Area Number 19K05001
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 26020:Inorganic materials and properties-related
Research InstitutionFukui University of Technology (2022)
Nagoya University (2019-2021)

Principal Investigator

Asaka Koji  福井工業大学, 工学部, 教授 (50361316)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywordsカーボンナノチューブ / 電界放出 / 発光 / その場透過電子顕微鏡法
Outline of Research at the Start

カーボンナノチューブ(CNT)は、従来の電子源材料に比べて低電圧で電界電子放出するエミッタ材料として注目されている。最近、電界放出中にCNTから電子だけでなく光も放出されることがわかった。この特性を利用したCNTエミッタの光・電子素子の創生につなげることを目的に、その場透過電子顕微鏡法に基づく構造観察・物性計測によりCNTの構造と電界電子放出および発光の関係を明らかにし、発光の基礎特性、発現機構を解明することを目指す。

Outline of Final Research Achievements

Field-emission-induced light emission for a multi-walled carbon nanotube (CNT) emitter was studied by in-situ transmission electron microscopy combined with optical spectroscopy. During field emission, light emission from the CNT was observed. In the light emission spectra, a sharp peak was observed at 661 nm in addition to a broad peak in the measurement range from 450 to 850 nm, which is different from blackbody radiation. The present study also suggests that the sharp peak may be related to the tip structure of the CNT.

Academic Significance and Societal Importance of the Research Achievements

本研究では、カーボンナノチューブの電界放出中に発現する発光について、電界放出中のカーボンナノチューブの構造を動的に観察しながら、その場で印加電圧や放出電流、発光スペクトルを同時に調べることができる、その場透過電子顕微鏡法を利用している。本研究で見出された知見は、カーボンナノチューブ電子エミッタの光・電子素子への応用開拓につながる研究シーズとなることが期待され、また本研究で用いた手法は、カーボンナノチューブをはじめ様々なナノ物質の構造と特性の関係を解明するための学術的研究に有用な実験手法であることが示された。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (19 results)

All 2022 2021 2020 2019

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 3 results) Book (3 results)

  • [Journal Article] Critical current density for layer-by-layer breakdown of a multiwall carbon nanotube2022

    • Author(s)
      Asaka Koji, Yamauchi Kentaro, Saito Yahachi
    • Journal Title

      Diamond and Related Materials

      Volume: 124 Pages: 108907-108907

    • DOI

      10.1016/j.diamond.2022.108907

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Light emission and structural changes in a suspended multiwall carbon nanotube on application of electric current2021

    • Author(s)
      Koji Asaka, Koshi Nishikawa, Yahachi Saito
    • Journal Title

      Diamond and Related Materials

      Volume: 111 Pages: 108175-108175

    • DOI

      10.1016/j.diamond.2020.108175

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Raman Spectroscopy and TEM of Long Linear Carbon Chain Formed in CNT Field Emission Cathode2020

    • Author(s)
      Koji Asaka, Satoshi Toma, Yahachi Saito
    • Journal Title

      e-Journal of Surface Science and Nanotechnology

      Volume: 18 Issue: 0 Pages: 159-163

    • DOI

      10.1380/ejssnt.2020.159

    • NAID

      130007834719

    • ISSN
      1348-0391
    • Year and Date
      2020-04-23
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Raman spectroscopy and transmission electron microscopy study on long linear atomic carbon chains generated by field electron emission accompanied with electrical discharge of carbon nanotube films2019

    • Author(s)
      Koji Asaka, Satoshi Toma, Yahachi Saito
    • Journal Title

      SN Applied Sciences

      Volume: 1 Issue: 5

    • DOI

      10.1007/s42452-019-0481-9

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Si/SiO2 Core/Shell Luminescent Silicon Nanocrystals and Porous Silicon Powders With High Quantum Yield, Long Lifetime, and Good Stability2019

    • Author(s)
      Gelloz Bernard、Juangsa Firman Bagja、Nozaki Tomohiro、Asaka Koji、Koshida Nobuyoshi、Jin Lianhua
    • Journal Title

      Frontiers in Physics

      Volume: 7 Pages: 1-7

    • DOI

      10.3389/fphy.2019.00047

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 多層量子ドット構造実現に向けた絶縁体上へのGe1-xSnxナノ ドットの自己形成2022

    • Author(s)
      橋本薫, 柴山茂久, 安坂幸師, 中塚理
    • Organizer
      電子情報通信学会 シリコン材料・デバイス研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Sn-driven self-formation of Ge1-xSnx nanodots on insulator for multi-layered quantum dots structure2022

    • Author(s)
      Kaoru Hashimoto, Shigehisa Shibayama, Koji Asaka, Masashi Kurosawa, Osamu Nakatsuka
    • Organizer
      9th International Symposium on Control of Semiconductor Interfaces
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 熱安定性の高いGe1-xSnx量子ドットの自己形成2022

    • Author(s)
      橋本薫, 柴山茂久, 安坂幸師, 黒澤昌志, 坂下満男, 中塚理
    • Organizer
      応用物理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Formation of Ultra-slender CNTs via Field Emission Discharge of CNT films2021

    • Author(s)
      Yahachi Saito, Koji Asaka
    • Organizer
      フラーレン・ナノチューブ・グラフェン学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 多層カーボンナノチューブの通電破断その場TEM 観察2020

    • Author(s)
      安坂幸師, 山内健太郎, 齋藤弥八
    • Organizer
      日本顕微鏡学会
    • Related Report
      2020 Research-status Report
  • [Presentation] Long linear carbon chains inside CNT formed by electric discharge of a SWCNT film2020

    • Author(s)
      齋藤弥八, 安坂幸師, 石田稔幸
    • Organizer
      フラーレン・ナノチューブ・グラフェン学会
    • Related Report
      2019 Research-status Report
  • [Presentation] FEM/FIM によるグラフェンエッジの電子軌道の観察2020

    • Author(s)
      齋藤弥八, 星野徹, 中原仁, 安坂幸師, 永井滋一, 畑浩一
    • Organizer
      応用物理学会
    • Related Report
      2019 Research-status Report
  • [Presentation] カーボンナノチューブへの通電による発光のその場TEM観察2019

    • Author(s)
      安坂幸師,西川耕史,齋藤弥八
    • Organizer
      ナノ学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 多層カーボンナノチューブの電界放出誘起発光その場TEM観察2019

    • Author(s)
      安坂幸師, 油田海維, 齋藤弥八
    • Organizer
      日本顕微鏡学会
    • Related Report
      2019 Research-status Report
  • [Presentation] Light emission from a suspended multiwall carbon nanotube by applying an electric current2019

    • Author(s)
      Koji Asaka, Koshi Nishikawa, Yahachi Saito
    • Organizer
      12th International Symposium on Atomic Level Characterizations for New Materials and Devices’19
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Raman spectroscopy and TEM of long linear carbon chain formed in CNT field emission cathode2019

    • Author(s)
      Koji Asaka, Satoshi Toma, Tomonari Wakabayashi, Yahachi Saito
    • Organizer
      12th International Symposium on Atomic Level Characterizations for New Materials and Devices’19
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Book] Nanostructured Carbon Electron Emitters and its Applications (Chapter 16, Growth of long linear carbon chains after serious field emission from a CNT film)2022

    • Author(s)
      Koji Asaka, Yahachi Saito
    • Total Pages
      374
    • Publisher
      Jenny Stanford Publishing Pte Ltd.
    • Related Report
      2021 Research-status Report
  • [Book] Recent Developments in Atomic Force Microscopy and Raman Spectroscopy for Materials Characterization (Chapter 13, Raman features of linear-carbon-chain and multiwall carbon nanotube composites)2021

    • Author(s)
      Yahachi Saito, Koji Asaka
    • Total Pages
      274
    • Publisher
      IntechOpen Ltd.
    • Related Report
      2021 Research-status Report
  • [Book] カーボンナノチューブの表面処理・分散技術と複合化事例(9章5節, カーボンナノチューブへの通電による構造変化と発光のその場TEM評価)2019

    • Author(s)
      安坂幸師
    • Total Pages
      456
    • Publisher
      株式会社技術情報協会
    • ISBN
      9784861047725
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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