Quantitative Separation of Single-Walled Carbon Nanotubes into Metallic and Semiconducting Fractions
Abstract
Single-walled carbon nanotubes (SWNTs) are widely recognized as being broadly applicable to advanced materials and systems important to the Air Force. However, the nanotube production generally yields mixtures, which presents major barriers in harvesting metallic-SWNTs as the minor fraction (up to only 1/3) and also in obtaining highly pure semi-SWNTs (electronic applications, for example). Their post-production separation in sufficient quantities has proven to be very challenging. Our project is to build upon our previous discovery to achieve efficient and quantitative separation into metallic and semiconducting fractions and, as related, to have a fundamental understanding of the underlying selective and specific molecular interactions responsible for the separation. In this project we made significant progress in improving the separation reagents and process, and the characterization and evaluations (including those at the device level) of the separated nanotube samples. The results are published or submitted for publication.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 15, 2012
- Accession Number
- ADA581369
Entities
People
- Ya-ping Sun
Organizations
- Clemson University