Self-Sorting of 10-µm-Long Single-Walled Carbon Nanotubes in Aqueous Solution.

ABSTRACT: Single-walled carbon nanotubes (SWCNTs) are a class of 1D nanomaterials that exhibit extraordinary electrical and optical properties. However, many of their fundamental studies and practical applications are stymied by sample polydispersity. SWCNTs are synthesized in bulk with broad structural (chirality) and geometrical (length and diameter) distributions; problematically, all known post-synthetic sorting methods rely on ultrasonication, which cuts SWCNTs into short segments (typically <1 µm). It is demonstrated that ultralong (>10 µm) SWCNTs can be efficiently separated from shorter ones through a solution-phase "self-sorting". It is shown that thin-film transistors fabricated from long semiconducting SWCNTs exhibit a carrier mobility as high as ≈90 cm² V^-1 s^-1

SUBMITTER: Wang P 

PROVIDER: S-EPMC6692235 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature