2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

Measuring Individual Carbon Nanotubes Using In Situ Raman Spectroscopy

S. Cronin
University of Southern California, US

Keywords:
carbon nanotube, raman spectroscopy

Abstract:
Despite their extremely small geometric cross-section, the Raman spectra from a single isolated carbon nanotube can be observed.  These spectra contain information regarding the nanotubes’ physical and electronic structure including diameter, defect density, stress and metallic/semiconducting nature.  With this technique we study the thermal, mechanical and electrical response of individual nanotubes using in situ Raman spectroscopy.  Because of their extremely high surface to volume ratio, the nanotubes are highly sensitive to these external perturbations, making them excellent candidates for various sensor applications. 

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