Photoluminescence from single-walled carbon nanotubes: a comparison between suspended and micelle-encapsulated nanotubes
By J. Lefebvre, J. M. Fraser, Y. Homma, P. Finnie. 2003
140 citations recorded by the source corpus.
Single-walled carbon nanotubes (SWNTs) are luminescent. Up to now, two preparation methods, both of which isolate individual SWNTs, have enabled the detection of nanotube bandgap photoluminescence (PL): encapsulation of individual SWNTs into surfactant micelles and direct growth of individual SWNTs suspended in air between pillars. This paper compares the PL obtained from suspended SWNTs to published PL data obtained from encapsulated SWNTs. We find that emission peaks are blueshifted by 28 meV on average for the suspended nanotubes as compared to the encapsulated nanotubes. Similarly, the resonant absorption peaks at the second set of van Hove singularities are blueshifted on average by 16 meV. Both shifts depend weakly on the particular chirality and diameter of the SWNT.
Subfields: Materials Chemistry, Organic Chemistry
View Paper: https://www.semanticscholar.org/paper/48c7f4cd24e9cb65eca3f4ce265590259ffaf4bd
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In Materials Chemistry
Citations in the corpus
- Carbon nanotubes, science and technology part (I) structure, synthesis and characterisation (2012, methodology): “…the most popular techniques is the ultrasonication treatment of the CNTs with surfactants in water suspension such as the SDS (sodium dodecyl sulfate) (Lauret et al., 2004; Lefebvre et al., 2004; Weisman et al., 2004; O’Connell et al., 2003; Lebedkin et al., 2003), and zeolite (Guo et al., 2004).”