Real-time impedance spectroscopy using 2D transition metal dichalcogenide material-based chemical sensor systems
US12429445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Nov 1, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2027/222
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to real-time impedance spectroscopy using 2d transition metal dichalcogenide material-based chemical sensor systems and methods of making and using same. Impedance approach to breakdown the resistance into multiple, measureable resistance components is used in such system. Thus, a real time impedance can be used to measure the resistance of a flake network when exposed to a gas. This change in the resistance can now be used to determine the concentration of a gas of interest, in many cases, down to a parts per trillion level. Thus, gas concentrations can efficiently and effectively determined on a more accurate level and less expensively than before.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.