Carbon nanotubes with nitrogen content
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United States of America Patent
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Dec 16, 2003
Grant Date -
Oct 23, 2003
app pub date -
Sep 20, 2001
filing date -
Sep 22, 2000
priority date (Note) -
Expired
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Abstract
Field emission characteristics of carbon films are improved by changing the conditions of the growth of the films, by adding nitrogen, or substitutes to the nitrogen for hydrogen, in the carbon film growth process. Resulting field emission cathodes exhibit better field emission characteristics because of the increased concentration of nitrogen within the film.
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