Scalable Carbon Nanotube Field Emitters for Scanning Electron Beam Instruments , Phase I
Department of Energy, SBIR Phase I Project,
Start Date: June 30, 2006
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Xidex Corporation is demonstrating the utility of nano-sized high-aspect-ratio cylindrical carbon-nanotube (CNT) field emitters for Scanning Electron Microscopes (SEMs) and Transmission Electron Microscopes (TEMs) that can be fabricated commercially. The main innovation of this work is the possibility of the CNT field emitters becoming the optimal field emitters for cutting-edge commercial applications. Prospects for success are driven by Xidex’s unique, repeatable fabrication process for CNT emitters and some very promising preliminary results. The CNT emitters have potentially better emitter characteristics then conventional cold and Shottky-based field emitters and other CNT emitters fabricated with different technology.
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Carbon Nanotube Field Emission Device for Flat Panel Displays, Phase I
National Science Foundation, SBIR Phase I Project, Start Date: July 1, 2001
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This Small Business Innovation Research (SBIR) Phase I project
demonstrated the feasibility of fabricating a carbon nanotube based field
emission device (FED) and of operating FEDs. The approach was a natural
extension of Xidex.s patented Nanotube Catalyst Retaining Structure (NCRS)
method. The Phase I work was aimed at overcomig limitations that have
prevented FEDs from successful use in the established liquid crystal
display (LCD) market and to initiate a broad range of other applications
that require growth of aligned carbon nanotubes as functional elements of
microelectromechanical systems (MEMS). This new concept in nanotechnology
will be useful in application of carbon nanotubes as functional elements
of integrated circuit (IC) and MEMS devices involving a multi-layered
structure of metal, insulator, and carbon nanotubes. Potential commercial
applications are expected in field emission displays, electron
microscopes, illumination devices, sensors, and similar devices.
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