Raman Scattering and Optical Spectroscopies of Carbon Nanotubes
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This work concerns the study of mono- and double-walled carbon nanotubes. It contains two distinct parts: (i) the first part is devoted to the understanding of the intrinsic optical and phonon properties of individual single (double)-walled carbon nanotubes; (ii) the second part reports an experimental investigation of the properties of covalently and non-covalently functionalized double-walled carbon nanotubes. In the first part, the excitonic nature of the optical transition of the individual free-standing carbon nanotubes is determined based on the excitation profiles. The study of quantum ...
This work concerns the study of mono- and double-walled carbon nanotubes. It contains two distinct parts: (i) the first part is devoted to the understanding of the intrinsic optical and phonon properties of individual single (double)-walled carbon nanotubes; (ii) the second part reports an experimental investigation of the properties of covalently and non-covalently functionalized double-walled carbon nanotubes. In the first part, the excitonic nature of the optical transition of the individual free-standing carbon nanotubes is determined based on the excitation profiles. The study of quantum interferences shows unexpected behavior of the intensities of the G-modes. In the second part, the presence of photoluminescence of functionalized double-walled carbon nanotubes was established. We also show an evidence of an energy transfer from the dye molecules towards the internal tube when such molecules are covalently grafted on the outer tube.
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