Electromagnetic and thermal sensors using carbon nanotubes and methods of making same
US8110883B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2008 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Apr 25, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/046
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Electromagnetic radiation detecting and sensing systems using carbon nanotube fabrics and methods of making the same are provided. In certain embodiments of the invention, an electromagnetic radiation detector includes a substrate, a nanotube fabric disposed on the substrate, the nanotube fabric comprising a non-woven network of nanotubes, and first and second conductive terminals, each in electrical communication with the nanotube fabric, the first and second conductive terminals disposed in space relation to one another. Nanotube fabrics may be tuned to be sensitive to a predetermined range of electromagnetic radiation such that exposure to the electromagnetic radiation induces a change in impedance between the first and second conductive terminals. The detectors include microbolometers, themistors and resistive thermal sensors, each constructed with nanotube fabric. Nanotube fabric detector arrays may be formed for broad-range electromagnetic radiation detecting. Methods for making nanotube fabric detectors, arrays, microbolometers, thermistors and resistive thermal sensors are each described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.