Exciton binding energies in carbon nanotubes from two-photon photoluminescence

Abstract

One- and two-photon luminescence excitation spectroscopy showed a series of distinct excitonic states in single-walled carbon nanotubes. The energy splitting between one- and two-photon-active exciton states of different wavefunction symmetry is the fingerprint of excitonic interactions in carbon nanotubes. We determine exciton binding energies of 0.3-0.4 eV for different nanotubes with diameters between 0.7 and 0.9 nm. Our results, which are supported by ab-initio calculations of the linear and non-linear optical spectra, prove that the elementary optical excitations of carbon nanotubes are strongly Coulomb-correlated, quasi-one dimensionally confined electron-hole pairs, stable even at room temperature. This alters our microscopic understanding of both the electronic structure and the Coulomb interactions in carbon nanotubes, and has direct impact on the optical and transport properties of novel nanotube devices.

5 pages, 4 figures

References in corpus (10)

• Excitonic Effects and Optical Spectra of Single-Walled Carbon Nanotubes
• Ab initio calculation of excitonic effects in the optical spectra of semiconductors
• Scaling of excitons in carbon nanotubes
• Chirality distribution and transition energies of carbon nanotubes
• Electron-electron interaction effects on optical excitations in semiconducting single-walled carbon nanotubes
• Full Symmetry of Single- and Multi-wall Nanotubes
• Excitons in carbon nanotubes: an ab initio symmetry-based approach
• Exciton-phonon effects in carbon nanotube optical absorption
• Electron Interactions and Scaling Relations for Optical Excitations in Carbon Nanotubes
• Solid state effects on exciton states and optical properties of PPV

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