Understanding and Control of the Structure of Single-Walled Carbon Nanotubes Produced in Laser Plasma

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-05-C-0125
Agency Tracking Number: F054-005-0168
Amount: $99,950.00
Phase: Phase I
Program: STTR
Awards Year: 2005
Solitcitation Year: 2005
Solitcitation Topic Code: AF05-T005
Solitcitation Number: N/A
Small Business Information
XINTEK, INC.
P.O. Box 13788, 7020 Kit Creek road, suite 280, RTP, NC, 27709
Duns: 017945192
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Bo Gao
 Research Scientist
 (919) 313-9638
 bgao@xintek.com
Business Contact
 Shan Bai
Title: CEO
Phone: (919) 313-9638
Email: sbai@xintek.com
Research Institution
 UNIV. OF NORTH CAROLINA
 Tony G Waldrop
 Office of Sponsored Research, 104 Airport Dr. Ste. 2200
Chapel Hill, NC, 27599
 (919) 966-3411
 Nonprofit college or university
Abstract
The exceptional properties of carbon nanotubes that have prompted potential applications rely on their atomic structure. While the sensitivity of nanotube properties on structural features has been extensively investigated through theoretical analysis and numerical simulations, in practice there is no still effective control of the atomic structure of nanotubes in any of the current synthesis techniques. Actually, there has no even a reliable method to characterize the atomic structure of carbon nanotubes with high precision. Xintek, Inc. has pioneered the chemical vapor deposition (CVD) synthesis of carbon nanotubes with unique and tunable properties for field-induced electron emission applications through development of a new generation of metallic catalysts. In Phase I of this project, in collaboration with the University of North Carolina at Chapel Hill, we will investigate the effectiveness of the Xintek catalysts in the production of single-walled carbon nanotubes using laser evaporation. Specifically, we will (a) Study the functions of the CVD effective catalyst in laser evaporation for the production of single-walled carbon nanotubes; (b) Determine and map the atomic structure (diameter and chirality) of the produced nanotubes in correlation with synthesis condictions; and (c) Gain insights on the possible control in the atomic structure of carbon nanotubes produced in laser plasma for controllable and large-scale production.

* information listed above is at the time of submission.

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