Experimental study on local structure changes in nanomaterials induced by low-voltage electron beam

• Project/Area Number: 16K05948
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic industrial materials
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Sato Yuta 国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 (90392620)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 透過電子顕微鏡 / 電子分光 / ナノ材料 / カーボンナノチューブ / グラフェン / ナノ粒子 / 電子顕微鏡 / ナノチューブ・フラーレン

Outline of Final Research Achievements

In this study, atomic-scale structures of various nanomaterials such as nanocarbon and metal nanoparticles were characterized by means of transmission electron microscopy ((S)TEM) operated at low electron accelerating voltages in order to verify the mechanisms of electron beam-induced structural changes. Atomic vacancies introduced into nanotubes and graphene were unambiguously visualized, and morphological changes of metal nanoparticles and nanoclusters were monitored in situ by (S)TEM. Atomic-level distribution of sulfur in polythiophene molecules supported by carbon nanotubes was also examined by electron energy loss spectroscopy combined with low-voltage STEM.

Academic Significance and Societal Importance of the Research Achievements

本研究で対象とした低加速電子顕微鏡は、ナノ材料分野を中心に近年急速に普及が進みつつあるが、観察試料の電子線ダメージの低減効果に関しては検討の余地が残されている。本研究ではナノチューブやグラフェンに担持された分子や金属ナノ粒子などに注目し、低加速電子線照射下における挙動を明らかにしたが、これらの成果は、今後より広範な物質へ低加速電子顕微鏡観察を応用する上で大きな意義を持つことが見込まれる。

Research Products

• [Journal Article] Fermi level shift in carbon nanotubes by dye confinement (2019)
  • Author(s): Y. Almadori, G. Delport, R. Chambard, L. Orcin-Chaix, A.C. Selvati, N. Izard, A. Belhboub, R. Aznar, B. Jousselme, S. Campidelli, P. Hermet, R. Le Parc, T. Saito, Y. SATO, K. Suenaga, P. Puech, J.S. Lauret, G. Cassabois, J.-L. Bantignies, L. Alvarez
  • Journal Title: Carbon Volume: in press Pages: 1-9
  • DOI: 10.1016/j.carbon.2019.04.041
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Lithium fluoride/iron difluoride composite prepared by a fluorolytic sol-gel method: Its electrochemical behavior and charge-discharge mechanism as a positive electrode material for lithium secondary batteries (2019)
  • Author(s): S. Tawa, Y. SATO, Y. Orikasa, K. Matsumoto, R. Hagiwara
  • Journal Title: Journal of Power Sources Volume: 412 Pages: 180-188
  • DOI: 10.1016/j.jpowsour.2018.11.046
  • Peer Reviewed
• [Journal Article] Chiral vector and metal catalyst-dependent growth kinetics of single-wall carbon nanotubes (2018)
  • Author(s): Kharlamova Marianna V.、Kramberger Christian、Sato Yuta、Saito Takeshi、Suenaga Kazu、Pichler Thomas、Shiozawa Hidetsugu
  • Journal Title: Carbon Volume: 133 Pages: 283-292
  • DOI: 10.1016/j.carbon.2018.03.046
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] High Rate Capability and Cyclability of CuP2/C Composite Negative Electrode for Sodium Secondary Battery Operating at Room to Intermediate Temperatures Using Ionic Liquid (2018)
  • Author(s): S. Kaushik, J. Hwang, K. Matsumoto, Y. SATO, R. Hagiwara
  • Journal Title: ChemElectroChem Volume: 5 Issue: 10 Pages: 1340-1344
  • DOI: 10.1002/celc.201800206
  • Peer Reviewed
• [Journal Article] Polymeric acid-doped transparent carbon nanotube electrodes for organic solar cells with the longest doping durability (2018)
  • Author(s): Jeon Il、Delacou Clement、Okada Hiroshi、Morse Graham E.、Han Tae-Hee、Sato Yuta、Anisimov Anton、Suenaga Kazu、Kauppinen Esko I.、Maruyama Shigeo、Matsuo Yutaka
  • Journal Title: Journal of Materials Chemistry A Volume: 6 Issue: 30 Pages: 14553-14559
  • DOI: 10.1039/c8ta03383h
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Sulfur-doped graphene-supported nickel-core palladium-shell nanoparticles as efficient oxygen reduction and methanol oxidation electrocatalyst (2018)
  • Author(s): D. K. Perivoliotis, Y. SATO, K. Suenaga, N. Tagmatarchis
  • Journal Title: ACS Applied Energy Materials Volume: 1 Issue: 8 Pages: 3869-3880
  • DOI: 10.1021/acsaem.8b00631
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Perovskite Solar Cells Using Carbon Nanotubes Both as Cathode and as Anode (2017)
  • Author(s): Jeon Il、Seo Seungju、Sato Yuta、Delacou Clement、Anisimov Anton、Suenaga Kazu、Kauppinen Esko I.、Maruyama Shigeo、Matsuo Yutaka
  • Journal Title: The Journal of Physical Chemistry C Volume: 121 Issue: 46 Pages: 25743-25749
  • DOI: 10.1021/acs.jpcc.7b10334
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Mechanistic insights into the photocatalytic properties of metal nanocluster/graphene ensembles. Examining the role of visible light in the reduction of 4-nitrophenol (2017)
  • Author(s): Koklioti Malamatenia A.、Skaltsas Theodosis、Sato Yuta、Suenaga Kazu、Stergiou Anastasios、Tagmatarchis Nikos
  • Journal Title: Nanoscale Volume: 9 Issue: 27 Pages: 9685-9692
  • DOI: 10.1039/c7nr02944f
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Chirality-dependent growth of single-wall carbon nanotubes as revealed inside nano-test tubes (2017)
  • Author(s): Kharlamova Marianna V.、Kramberger Christian、Saito Takeshi、Sato Yuta、Suenaga Kazu、Pichler Thomas、Shiozawa Hidetsugu
  • Journal Title: Nanoscale Volume: 9 Issue: 23 Pages: 7998-8006
  • DOI: 10.1039/c7nr01846k
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Enhancing the Infrared Response of Carbon Nanotubes from Oligo-Quaterthiophene Interactions (2016)
  • Author(s): A. Belhboub, P. Hermet, L. Alvarez, R. Le Parc, S. Rols, A. C. Lopes Selvati, B. Jousselme, Y. SATO, K. Suenaga, A. Rahmani, J.-L. Bantignies
  • Journal Title: Journal of Physical Chemistry C Volume: 120 Issue: 50 Pages: 28802-28807
  • DOI: 10.1021/acs.jpcc.6b09329
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Distributions of hafnia and titania cores in EUV metal resists evaluated by scanning transmission electron microscopy and electron energy loss spectroscopy (2016)
  • Author(s): M. Toriumi, Y. SATO, M. Koshino, K. Suenaga, T. Itani
  • Journal Title: Applied Physics Express Volume: 9 Issue: 11 Pages: 111801-111801
  • DOI: 10.7567/apex.9.111801
  • NAID: 210000138089
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 透過電子顕微鏡による炭素ナノ構造の原子レベル観察の現状 (2016)
  • Author(s): 佐藤雄太
  • Organizer: 溶融塩技術事業化研究会
  • Place of Presentation: キャンパスプラザ京都（京都府・京都市）
  • Invited