Figure 2: The pH dependency of the weak field SWCNT separation. | Scientific Reports

Figure 2: The pH dependency of the weak field SWCNT separation.

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

Figure 2

(a) Photograph of the resulting separation of SWCNTs from the raw dispersion after 32 h of centrifugation at 10,000 × g for increasing pH-values. (b) Normalized (to peak at ≈1270 nm) UV-Vis-NIR absorbance measurements of the separated fractions (red boxes). The spectrum of the pH 1 fraction was not normalized due to a lack of optical transitions. Spectra were offset into the y-direction for clarity.

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