Ultrasensitive ion detector using carbon nanotubes or graphene
US10036728B2 · kind B2 · utility
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1References
19Claims
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Key dates
| Filing date | Nov 12, 2013 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Aug 1, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ion detection device has a strip of carbon-based nanomaterial (CNM) film and a chamber enclosing the CNM film. A low bias voltage is applied at the ends of the CNM film strip, and ions present in the chamber are detected by a change in the magnitude of current flowing through the CNM film under the bias. Also provided are methods for fabricating the device, methods for measuring pressure of a gas, and methods for monitoring or quantifying an ionizing radiation using the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.