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

• Project/Area Number: 21H01386
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 21060:Electron device and electronic equipment-related
• Research Institution: Japan 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
• Project Status: Discontinued (Fiscal Year 2022)
• Budget Amount: ¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000); Fiscal Year 2022: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2021: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
• Keywords: Random Telegraphy Signal / Charge Neutral Point / Suspended Graphene / Lock-in measurements / Random-Telegraph-Signal / Graphene sensor / 1/f Noise spectrum / Random Telegraph Signals / Gas sensing / Graphene / Nanocavity / 1/f noise

Outline of Research at the Start

This project aims to demonstrate one-by-one gas molecules sensing by the sub-micro-sec Random-Telegraph-Signal (RTS) measurements, the time-domain histogram, and frequency-domain 1/f spectrum analyses. For this purpose, the nanocavities will be integrated with the suspended graphene channel.

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

• [Journal Article] Sub 0.5 Volt Graphene-hBN van der Waals Nanoelectromechanical Switches (2022)
  • Author(s): Manoharan Muruganathan, Ngoc Huynh Van, Marek E. Schmidt, and Hiroshi Mizuta
  • Journal Title: Advanced Functional Materials Volume: 32 Issue: 52 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 network (2022)
  • Author(s): Kareekunnan Afsal、Agari Tatsufumi、Kudo Takeshi、Niwa Shunsuke、Abe Yoshito、Maruyama Takeshi、Mizuta Hiroshi、Muruganathan Manoharan
  • Journal Title: AIP Advances Volume: 12 Issue: 9 Pages: 095209-095209
  • DOI: 10.1063/5.0095449
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Carbon molecular sieve-functionalized graphene sensors for highly sensitive detection of ethanol (2022)
  • Author(s): Sankar Ganesh Ramaraj, Manoharan Muruganathan, Osazuwa G. Agbonlahor, Hisashi Maki, Yosuke Onda, Masashi Hattori, Hiroshi Mizuta
  • Journal Title: Carbon Volume: 190 Pages: 359-365
  • DOI: 10.1016/j.carbon.2022.01.023
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Interfacial Ammonia Selectivity, Atmospheric Passivation, and Molecular Identification in Graphene-Nanopored Activated Carbon Molecular-Sieve Gas Sensors (2021)
  • Author(s): Gabriel Osazuwa Agbonlahor, Manoharan Muruganathan, Sankar Ganesh Ramaraj, ZHONGWANG Wang, Hammam Ahmed, Afsal Kareekunnan,Hisashi Maki, Masahi Hattori, Kenichi Shimomai, Hiroshi Mizuta
  • Journal Title: ACS Applied Materials & Interfaces Volume: 13 Issue: 51 Pages: 61770-61779
  • DOI: 10.1021/acsami.1c19138
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Development of graphene electric field sensor for large scale lightning detection network (2022)
  • 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 engineering (2022)
  • 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
• [Presentation] Windowed histogram for RTS analysis in graphene gaseous sensors (2022)
  • Author(s): Alexandro de Moraes Nogueira, Manoharan Muruganathan, Hiroshi Mizuta
  • Organizer: JSAP The 69th Spring Meeting 2022
• [Presentation] Catalyst-modified graphene FET towards ammonium gas sensing (2022)
  • Author(s): Shogo Hamasaka, Manoharan Muruganathan, Sankar Ganesh Ramaraj, Hisashi Maki, Yosuke Onda, Masashi Hattori, Hiroshi Mizuta
  • Organizer: JSAP The 69th Spring Meeting 2022
• [Presentation] All-2D Graphene Nano-Electro-Mechanical (NEM) Switch and the Progress of High-Sensitive Electric Field Sensing for Thunder Clouds Movements (2021)
  • Author(s): Manoharan Muruganathan, Afsal Kareekunnan, Tatsufumi Agari, Huynh Van Ngoc, Takeshi Kudo, Takeshi Maruyama, and Hiroshi Mizuta
  • Organizer: The 8th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies (EM-NANO)
  • Int'l Joint Research / Invited
• [Presentation] Enhancement of Electric Field Sensitivity in Graphene for Early Lightning Prediction (2021)
  • Author(s): Kareekunnan Afsal, Tatsufumi Agari, Takeshi Kudo, Takeshi Maruyama, Hiroshi Mizuta, and Manoharan Muruganathan
  • Organizer: Silicon Nanoelectronics Workshop 2021
  • Int'l Joint Research
• [Presentation] Charge neutrality point disparity based identification of ethanol gas molecules in activated carbon functionalized graphene (2021)
  • Author(s): Sankar Ganesh Ramaraj, Manoharan Muruganathan, Osazuwa Gabriel Agbonlahor, Hisashi Maki, Masashi Hattori, Hiroshi Mizuta
  • Organizer: 2021 International Conference on Solid State Devices and Materials (SSDM2021)
  • Int'l Joint Research