Figure 1: The separation process is shown schematically. | Scientific Reports

Figure 1: The separation process is shown schematically.

From: Highly Efficient and Scalable Separation of Semiconducting Carbon Nanotubes via Weak Field Centrifugation

Figure 1

(a) Raw HiPco SWCNTs are dispersed in an aqueous solution of the PAE dispersant. The general structure of the PAEs is shown. The exact compositions of the PAEs are detailed in the Supplementary Information. (b) The neutral (1.), acidic (2.) and acidic layered (3.) preparation of the separation medium and dispersion prior to centrifugation. (c) Photographs of the tubes after centrifugation at 10,000 × g reveal the separation of electronically unsorted SWCNTs under neutral (1.) and semiconducting SWCNTs under acidic (2.) conditions during centrifugation. The freestanding SWCNT sheet (3.) is shown after extraction from the centrifugation vessel and transfer into a DI-water bath.

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