Obtaining selectivity in gas sensors via a sensor array system composed of P and N type material
US9170225B2 · kind B2 · utility
33Cited by
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17Claims
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Key dates
| Filing date | Feb 28, 2013 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Dec 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for discriminating among volatile compounds is provided using a semiconductor junction structure or sensor device. Sensor devices of the present disclosure employ a combination of hole carriers (p-type) and electron carriers (n-type) metal oxides deposited, for example, on a gold microspring array designed so that it has several leads that are at different distances from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.