3. Photoluminescence: a powerful metrology and characterization tool
3.1 Photoluminescence of a nanotube assembly
The measurement of PL excitation maps (PLE) (figure 6 ), i.e. a set of PL spectra for different excitation energies, has emerged as a powerful characterization technique for SWNT assemblies, suspended in a liquid, or dispersed in a solid matrix. As described in section 2, it was necessary to isolate carbon nanotubes using surfactants in order to detect light emission from the nanotubes.
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Photoluminescence: a powerful metrology and characterization tool
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