Scale-Up of ATPE Technology to Produce Highly Enriched Semiconducting SWCNTs

Single-walled carbon nanotubes (SWCNTs) have unique material properties making them very attractive for use in a variety of electronic applications. However, as-grown SWCNTs contain a mixture of tubes with heterogeneous optical and electronic properties. The chiral species must be separated in order to maximize the desired properties. To date, no large scale separation process has been accomplished. This Phase I project seeks to extend the promising technique developed at NIST to demonstrate single-chirality CNT separation, at laboratory scale.