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Applied Nanotech has produced new carbon nanotube composites for electron field emission applications with claimed significantly improved properties.
By combining these proprietary carbon nanotube composites (CNT) with other conductive and non-conductive nanoparticles, ANI’s scientists were able to significantly lower the voltage necessary for optimal electron emission.
Generally, the electric field threshold necessary for field emission applications varies between 2.5 and 4.5 Volts/micrometer, depending on the carbon nanotube quality. In the new composites the threshold voltage varies between 1.5 and 3 Volts/micrometer under the same conditions. This large decrease, combined with the fact that the mixture contains fewer carbon nanotubes (the highest cost component in the composite) will accelerate the use of carbon nanotube field emission technology for home television applications by providing the following new potential benefits: a) reduced material cost as a result of the reduced quantities of CNT required; b) the possible utilization of non-purified carbon nanotubes; c) higher current at lower electric fields (as a result, lower cost electronic drivers); d) activation-free process; e) no contamination of CNT substrate from the activation process; f) processes that result in a perpendicular alignment of carbon nanotubes to the substrate are not necessary.
“”In light of recent public comments from Mitsubishi, Noritake, Samsung, NHK and others stating that carbon nanotube field emission is the future technology for large consumer television applications, our new composites will expedite the transition to production for manufacturers and facilitate new licensing agreements for us,”” said Dr. Zvi Yaniv, President and CEO of ANI.
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