Carbon Nanotube Gas Sensor

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNA04BA61C
Agency Tracking Number: 034070
Amount: $69,944.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: A5.02
Solicitation Number: N/A
Small Business Information
200 YELLOW PL, Rockledge, FL, 32955-5327
DUNS: 175302579
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Robert Scaringe
 Principal Investigator
 (321) 631-3550
 rps@mainstream-engr.com
Business Contact
 Michael Rizzo
Title: Business Official
Phone: (321) 631-3550
Email: 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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