SBIR/STTR Research Award
Carbon Nanotube Based Electron Field Emission Cathodes for Traveling Wave Tubes
Award amount
$749,354Program and phase
SBIR · Phase IIAward year
2006Award details
- Awarding agency
- Department of Defense
- Branch
- Air Force
- Recipient company
- XINTEK, INC.
- Proposal award date
- 2006-08-31
- Contract end date
- 2008-12-01
- UEI
- WH5MKB6692W7
- Solicitation number
- 2005.1
- Topic code
- AF05-001
Research abstract
We propose in this project to develop carbon nanotubes (CNTs) based field emission cathodes with high current density and long lifetime in pulsed and continuous beam operation for traveling wave tube applications. In phase I, we have successfully demonstrated high current density (>1 A/cm2) from our diode and triode CNT cathodes. In phase II, we will concentrate on improving our cathode design to enhance the cathode efficiency and lifetime in actual TWT environments. Meanwhile, we will continue working on our CNT materials to optimize their structures, such as diameter and lengths. Low work function materials are always attractive for making electron sources. In phase II, we propose to reduce the work function of CNTs by chemical doping. We will also try to produce other low work function nanomaterials. The field emission properties of these low work function nanomaterials will be investigated and the feasibility of using these materials for field emission cathodes will be assessed.
Technology keywords
Not reported
Other awards by this recipient
Verified by the same UEI. These are other public SBIR/STTR award pages, not a merged company record.
- High resolution 3D dental X-ray imaging system with low dose and low cost
- Not Available
- High-Performance Polymer Nanocomposites Containing Functionalized Few-Walled Carbon Nanotubes
- SBIR Phase I:Integrated CNT Field Emission Cathode Structures for High Power Vacuum Devices
- SBIR Phase II: Efficient Production of High Quality Carbon Nanotube Field Emitters
Awards with the same topic code
Verified by an exact topic code match. This is not a text-similarity match.
- High Current Density Carbon Nanotube Cold Cathode for TWT Applications
- High Current Density Carbon Nanotube Cold Cathode for TWT Applications
- Cold Cathode for Traveling Wave Tubes
- Carbon Nanotube Based Electron Field Emission Cathodes for Traveling Wave Tubes
Research funding history
16 SBIR/STTR records share this UEI (2002–2014). Reported award amounts total $3,673,318. Reported amounts are not federal obligations.
Phases: Phase I, Phase II
Agencies: National Science Foundation, Department of Health and Human Services, Department of Defense, National Aeronautics and Space Administration, Department of Energy