Carbon nanotube nanometrology system
US7564549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2007 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | May 8, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2202/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.