Patterning carbon nanotube coatings by selective chemical modification
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United States of America Patent
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Issued Date -
Mar 16, 2006
app pub date -
May 9, 2005
filing date -
May 7, 2004
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Abstract
This invention is directed to a method of patterning carbon nanotubes transparent electrically conductive coating/films, by modification of the applied carbon nanotube (CNT) network through use of sidewall group functionalization to disrupt electrical conductivity of the nanotubes. The resulting areas which undergo chemical modification are rendered more or less conductive than those areas which where not altered. This results in a patterned film, wherein said pattern is shaped to form electrodes, pixels, wires, antenna or other electrical component. In addition, the areas of chemically modified CNT can be returned to their original conductive state (i.e. reversible and repeatable), or fixed to yield a permanent pattern.
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