Effect of removal and change of surfactant upon the photoluminescence of carbon nanotubes

Timothy J. McDonald; Chaiwat Engtrakul; Marcus Jones; Jeffrey L. Blackburn; Garry Rumbles; Michael J. Heben

doi:10.1117/12.617481

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18 August 2005 Effect of removal and change of surfactant upon the photoluminescence of carbon nanotubes

Timothy J. McDonald, Chaiwat Engtrakul, Marcus Jones, Jeffrey L. Blackburn, Garry Rumbles, Michael J. Heben

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Proceedings Volume 5929, Physical Chemistry of Interfaces and Nanomaterials IV; 59290W (2005) https://doi.org/10.1117/12.617481
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

We measure the concentration of single-walled nanotubes (SWNTs) present in aqueous suspensions by a technique that involves surfactant removal followed by high-temperature oxidation and mass spectroscopy of the resulting products. We also analyze the shift in SWNT emission energy evident from photoluminescence excitation spectroscopy as the surfactant molecule is changed. Next we study spectroscopic changes as surfactant is gently removed by dialysis.

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Timothy J. McDonald, Chaiwat Engtrakul, Marcus Jones, Jeffrey L. Blackburn, Garry Rumbles, and Michael J. Heben "Effect of removal and change of surfactant upon the photoluminescence of carbon nanotubes", Proc. SPIE 5929, Physical Chemistry of Interfaces and Nanomaterials IV, 59290W (18 August 2005); https://doi.org/10.1117/12.617481

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