PT4.96 - Ultra-High Sensitivity LC Resonant Pressure Sensor Based on a Microstructured Ionogel Dielectric Layer
- Event
- EUROSENSORS XXXVI
2024-09-01 - 2024-09-04
Debrecen (Hungary) - Band
- Poster
- Chapter
- PT4 - Physical Sensors and Actuators
- Author(s)
- C. Y. Cho, Y. J. Yang - National Taiwan University, Taipei (Taiwan)
- Pages
- 301 - 302
- DOI
- 10.5162/EUROSENSORSXXXVI/PT4.96
- ISBN
- 978-3-910600-03-4
- Price
- free
Abstract
This study introduces a highly sensitive ionogel-based wireless pressure sensor, incorporating an inductor coil and a parallel-plate capacitor for pressure detection. A microstructured ionogel film was employed as the dielectric layer on the capacitor which significantly enhances the sensor perfor-mance. This effective improvement is largely due to the ultra-high capacitance generated by electron double layers at the interface between the ionogel film and the electrode. The sensitivity of the pro-posed device was recorded at 0.023 mmHg-1, making it roughly 50 times more sensitive than similar capacitive devices without the ionogel film.