Carbon Nanotube Gas Sensor

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$69,944.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
NNA04BA61C
Agency Tracking Number:
034070
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Mainstream Engineering Corporation
200 Yellow Pl, Rockledge, FL, 32955
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
175302579
Principal Investigator:
Robert Scaringe
Principal Investigator
(321) 631-3550
rps@mainstream-engr.com
Business Contact:
Michael Rizzo
Business Official
(321) 631-3550
mar@mainstream-engr.com
Research Institution:
n/a
Abstract
Sensing gas molecules is critical to environmental monitoring, control of chemical processes, space missions as well as agricultural and medical applications. Existing electrical sensor materials are based on semi-conducting metal oxides, silicon devices, organic materials and gas responsive polymers or ceramics. To achieve high chemical sensitivity, semi-conducting metal oxide sensors must be operated at elevated temperatures (200 to 600?C). This need for high temperature operation increases the device complexity and renders them unsuitable for real-time portable applications. On the other hand, conducting polymers and organic semi-conductors are suitable for room temperature operation, but exhibit limited sensitivity. Clearly, there is a need to develop new technology that will allow for operation at room temperature and atmospheric pressure and provide for high-sensitivity measurements and low response times. We have already experimentally demonstrated under our own Internal R&D funding, that carbon nanotubes provide this enabling technology This effort will experimentally demonstrate a new nanotube sensor technology, which is a radical departure from conventional nanotube sensor approaches. Tests already performed with the proposed carbon nanotube sensor indicate that the electrical response of each gas is unique and that the individual gas concentrations can also be determined.

* information listed above is at the time of submission.

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