Exciton resonances quench the photoluminescence of zigzag carbon nanotubes
arXiv:cond-mat/0504607 · doi:10.1103/PhysRevLett.95.077402
Abstract
We show that the photoluminescence intensity of single-walled carbon nanotubes is much stronger in tubes with large chiral angles - armchair tubes - because exciton resonances make the luminescence of zigzag tubes intrinsically weak. This exciton-exciton resonance depends on the electronic structure of the tubes and is found more often in nanotubes of the +1 family. Armchair tubes do not necessarily grow preferentially with present growth techniques; they just have stronger luminescence. Our analysis allows to normalize photoluminescence intensities and find the abundance of nanotube chiralities in macroscopic samples.
arXiv comment4 pages and 2 supplementary pages; 6 figures
References in corpus (4)
Cited by in corpus (12)
- Radial breathing mode of single-walled carbon nanotubes: Optical transition energies and chiral-index assignment
- Structure-Dependent Fluorescence Efficiencies of Individual Single-Walled Carbon Nanotubes
- Structure and formation energy of carbon nanotube caps
- Entropy driven stability of chiral single-walled carbon nanotubes
- Identification of excitonic phonon sideband by photoluminescence spectroscopy of single-walled carbon-13 nanotubes
- Chirality dependence of the absorption cross-section of carbon nanotubes
- Quantitative calculations of the excitonic energy spectra of semiconducting single-walled carbon nanotubes within a -electron model
- Intersubband decay of 1-D exciton resonances in carbon nanotubes
- Temperature Dependent Separation of Metallic and Semiconducting Carbon
- Chirality-Dependent Growth Rate of Carbon Nanotubes - A Theoretical Study
- Nanotube caps on Ni, Fe, and NiFe nano particles: A path to chirality selective growth
- Universality in the Photophysics of pi-Conjugated Polymers and Single-Walled Carbon Nanotubes