Semiconductor gas sensor and gas sensing method
US11650176B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 2020 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Feb 15, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4163
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of sensing a target gas in an environment in which a response of a semiconducting gas sensor device upon exposure to the environment is measured. The semiconducting gas sensor device includes first and second electrodes in electrical contact with a doped organic semiconductor layer and is, e.g., an organic thin film transistor or organic chemiresistor. The measured response may be indicative of a cumulative amount of a target gas that the semiconducting gas sensor device has been exposed to. A gas sensor module containing the semiconducting gas sensor device may be connectable to a reader configured to read the semiconducting gas sensor device after exposure to the environment. The connection may be wired or wireless. The target gas may be 1-methylcyclopropene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.