Carbon nanotube nanometrology system
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United States of America Patent
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Jul 21, 2009
Grant Date -
Nov 15, 2007
app pub date -
May 8, 2007
filing date -
May 9, 2006
priority date (Note) -
Expired
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Abstract
The present invention provides systems and methods for quantifying, purifying and separating fullerenes, such as single wall carbon nanotubes (SWNTs). The purification/separation combination provides nearly 100% carbonaceous impurity-free SWNT content from a given impure sample and provides a desired chirality and diameter from a given non-separated sample. Nanometrological validation of the success of purification and separation uses a pyroelectric detector and Raman spectroscopy in a single system, thus providing a critical aspect for the nanomanufacturing environment. The purification/separation and nanometrological validations may be performed in a feedback loop to provide a satisfactorily refined sample and optimized purification/separation settings.
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