Method of preparing film of carbon nano-tube and film of carbon nano-tube prepared thereby
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United States of America Patent
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Feb 12, 2002
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N/A
app pub date -
Aug 24, 1999
filing date -
Sep 11, 1998
priority date (Note) -
Expired
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Abstract
A method is herein disclosed for preparing a film of a carbon nano-tube to obtain a low cost field emission source using a carbon nano-tube. A single-wall carbon nano-tube is placed together with acetone in a beaker, to which ultrasonic wave is applied to disperse the single-wall carbon nano-tube in acetone. Thereafter, acetone is evaporated spontaneously to deposit the single-wall carbon nano-tube on a copper plate placed in the beaker. The copper plate on the surface of which the single-wall carbon nano-tube is deposited is used for a cathode of an electronic tube.
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