pi-Electron theory of transverse optical excitons in semiconducting single-walled carbon nanotubes

Abstract

We present a quantitative theory of optical absorption polarized transverse to the tube axes in semiconducting single-walled carbon nanotubes. Transverse optical absorption in semiconducting single-walled carbon nanotubes is to an exciton state that is strongly blueshifted, relative to the two lowest longitudinal excitons, by electron-electron interactions. The binding energy of the transverse exciton is considerably smaller than those of the longitudinal excitons. Electron-electron interactions also reduce the relative oscillator strength of the transverse optical absorption. Our theoretical results are in excellent agreement with recent experimental measurements in four chiral nanotubes.

arXiv comment5 pages, 3 figures. to appear in Physical Review B

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Cited by in corpus (5)

• Correlated Electronic Properties of Some Graphene Nanoribbons: A DMRG Study
• Electron-electron interaction effects on the photophysics of metallic single-walled carbon nanotubes
• Observation of Exciton-Phonon Sideband in Individual Metallic Single-Walled Carbon Nanotubes
• Triplet excitations in carbon nanostructures
• Universality in the Photophysics of pi-Conjugated Polymers and Single-Walled Carbon Nanotubes