Nanotechnologies. Characterization of single-wall carbon nanotubes using near infrared photoluminescence spectroscopy1 Scope This document gives guidelines for the characterization of single wall carbon nanotubes (SWCNTs) using near infrared (NIR) photoluminescence (PL) spectroscopy. It provides a measurement method for the determination of the chiral indices of the semi conducting SWCNTs in a sample and their relative integrated PL intensities. The method can be expanded to estimate the relative mass concentrations of semi conducting SWCNTs in a sample from their

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