Odor sensor with organic transistor circuitry
US6661299B2 · kind B2 · utility
25Cited by
2References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2001 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Oct 4, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/311
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Circuits include at least one-odor sensitive organic transistor having a conduction channel whose conductivity changes in response to certain odors. The organic transistors are interconnected to increase their response to selected odor signals. The organic transistors may be interconnected to form a ring oscillator whose frequency of oscillation changes in response to an odor signal and in which the alternating signal applied to the gate electrodes of the organic transistors enhances their recovery and reduces their drift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.