Chemical sensor using semiconducting metal oxide nanowires
US7662652B2 · kind B2 · utility
10Cited by
3References
10Claims
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Key dates
| Filing date | Jul 1, 2008 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Jul 1, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/938
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Indium oxide nanowires are used for determining information about different chemicals or Biologics. Chemicals are absorbed to the surface of the nanowires, and cause the semiconducting characteristics of the Nanowires to change. These changed characteristics are sensed, and used to determine either the presence of the materials and/or the concentration of the materials. The nanowires may be between 10 and 30 nm in diameter, formed using a comparable size particle of catalyst material. The nanowires may then be used as part of the channel of a field effect transistor, and the field effect transistor is itself characterized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.