Wide dynamic range enrichment method of semiconducting single-walled carbon nanotubes with weak field centrifugation.

ABSTRACT: The potential of single-walled carbon nanotubes (SWCNTs) to outperform silicon in electronic application was finally enabled through selective separation of semiconducting nanotubes from the as-synthesized statistical mix with polymeric dispersants. Such separation methods provide typically high semiconducting purity samples with narrow diameter distribution, i.e. almost single chiralities. But for a wide range of applications high purity mixtures of small and large diameters are sufficient or even required. Here we proof that weak field centrifugation is a diameter independent method for enrichment of semiconducting nanotubes. We show that the non-selective and strong adsorption of polyarylether dispersants on nanostructured carbon surfaces enables simple separation of diverse raw materia

SUBMITTER: Reis WG 

PROVIDER: S-EPMC5357843 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature