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2022 Fiscal Year Annual Research Report

Digital detection of individual gas molecules in Time and Frequency space by Nanocavites integrated Graphene NanoElectroMechanical (NEM) Device

Research Project

Project/Area Number 21H01386
Research InstitutionJapan Advanced Institute of Science and Technology

Principal Investigator

MURUGANATH AN.M  北陸先端科学技術大学院大学, 先端科学技術研究科, 講師 (20639322)

Co-Investigator(Kenkyū-buntansha) KAREEKUNNAN Afsal  北陸先端科学技術大学院大学, 先端科学技術研究科, 特任助教 (90910779)
Project Period (FY) 2021-04-01 – 2023-03-31
KeywordsRandom Telegraphy Signal / Charge Neutral Point / Suspended Graphene / Lock-in measurements
Outline of Annual Research Achievements

Resistance Versus time measurements was performed in a vacuum of 6 mTorr, and oxygen was introduced at a rate of 100 sccm in the chamber. It was noticed that the noise increases as Oxygen are introduced, which can be confirmed by looking at the standard deviation in windows of 10 seconds, as a function of time. A sudden increase in the standard deviation around 250 seconds (equivalent to a pressure of 370 Torr) was noticed. By comparing the time series in a vacuum (6 mTorr) and in an oxygen environment (400 Torr), it becomes clear that the increase in noise is caused by the emergence of random telegraphy signal (RTS), where the resistance randomly oscillates between a state with higher resistance (up-state) and one with lower resistance (down state).

Research Progress Status

令和4年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和4年度が最終年度であるため、記入しない。

  • Research Products

    (4 results)

All 2022

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (2 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Sub 0.5 Volt Graphene‐hBN van der Waals Nanoelectromechanical (NEM) Switches2022

    • Author(s)
      Muruganathan Manoharan、Van Ngoc Huynh、Schmidt Marek E.、Mizuta Hiroshi
    • Journal Title

      Advanced Functional Materials

      Volume: - Pages: 2209151~2209151

    • DOI

      10.1002/adfm.202209151

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Graphene electric field sensor for large scale lightning detection network2022

    • Author(s)
      Kareekunnan Afsal、Agari Tatsufumi、Kudo Takeshi、Niwa Shunsuke、Abe Yoshito、Maruyama Takeshi、Mizuta Hiroshi、Muruganathan Manoharan
    • Journal Title

      AIP Advances

      Volume: 12 Pages: 095209~095209

    • DOI

      10.1063/5.0095449

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Development of graphene electric field sensor for large scale lightning detection network2022

    • Author(s)
      A. Kareekunnan, M. Muruganathan, T. Kudo, Y. Abe, T. Maruyama and H. Mizuta
    • Organizer
      Micro and Nano Engineering(MNE)-EUROSENSORS 2022, Leuven, September 19-23 (2022)
    • Int'l Joint Research / Invited
  • [Presentation] Sub-10-nm nanomesh patterned on suspended graphene for nanoscale thermal engineering2022

    • Author(s)
      H. Mizuta, G. Jiayu, Y. Ozono, S. Ogawa, Y. Morita, A. Kareekunnan1, M. Muruganathan and F. Liu
    • Organizer
      IEEE 16th International Conference on Solid-State and Integrated CIrcuit Technology (ICSICT2022), Nanjing (Hybrid), October 25 - 28 (2022)
    • Int'l Joint Research / Invited

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Published: 2024-12-25  

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