2023 Fiscal Year Annual Research Report
Functionalized-graphene sensor on the hydrophobic surface for the selective detection of ppb-level volatile organic compounds (VOCs)
| Project/Area Number |
21K14510
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2021-04-01 – 2024-03-31
|
| Keywords | Graphene / SAW sensor |
|---|
| Outline of Annual Research Achievements |
we fabricated partially suspended monolayer graphene surface acoustic wave gas sensors (G-SAWs) with a love-mode wave to effectively detect ppt-level acetone gas molecules at room temperature. The sputtered SiO2 thin film on the surface of a black 36°YX-LiTaO3 (B-LT) substrate acted as a guiding layer, effectively reducing the noise and insertion loss. The G-SAWs exhibited enhanced gas response towards acetone gas molecules (800 ppt) in a real-time atmosphere. The high sensitivity of the G-SAW sensor can be attributed to the elasticity and surface roughness of the SiO2 film. In addition, the G-SAW sensor exhibited rapid response and recovery at room temperature. This study provides a potential strategy for diagnosing different stages of diabetes in the human body.
|
-
[Journal Article] Synergistic Fabrication, Characterization, and Prospective Optoelectronic Applications of DES grafted Activated Charcoal Dispersed PVA Films2024
Author(s)
Lokesh Kumar S, Binish C J, J.Rajprasad, Sumaiya Tabassum, Vivekananthan Sadaiyandi, Sankar Ganesh Ramaraj, Mohammad Ahmad Wadaan, Nikolai Ivanovich Vatin, Santhosh Govindaraju, Vijayasankar A V
-
Journal Title
Wiley Polymer for Advanced
Volume: -
Pages: -
Peer Reviewed / Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
-
-
-
