Exciton binding energies in carbon nanotubes from two-photon photoluminescence

2005/05/06 by J. Maultzsch, Janina Maultzsch, R. Pomraenke +15 · 4 citations
Chemistry · Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Fullerene Chemistry and Applications #Mechanical and Optical Resonators #cond-mat.mtrl-sci

paper · pdf · doi:10.1103/physrevb.72.241402

published as Phys. Rev. B 72, 241402(R) (2005) · 5 pages, 4 figures

arxiv created 2005/05/06 · openalex publication_date 2005/12/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

Excitonic effects in the linear and nonlinear optical properties of single-walled carbon nanotubes are manifested by photoluminescence excitation experiments and ab initio calculations. One- and two-photon spectra showed a series of exciton states; their energy splitting is the fingerprint of excitonic interactions in carbon nanotubes. By ab initio calculations we determine the energies, wave functions, and symmetries of the excitonic states. Combining experiment and theory we find binding energies of 0.3--0.4\phantom\rule0.3em0exeV for nanotubes with diameters between 6.8 and 9.0\phantom\rule0.3em0ex\mathrm\AA.

Citations

• New Method for Calculating the One-Particle Green's Function with Application to the Electron-Gas Problem
• Electron-Electron Interaction Effects on the Optical Excitations of Semiconducting Single-Walled Carbon Nanotubes

Cited by

• Quantitative calculations of the excitonic energy spectra of semiconducting single-walled carbon nanotubes within aπ-electron model
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• Computational Study of Exciton Generation in Suspended Carbon Nanotube Transistors
• π-electron theory of transverse optical excitons in semiconducting single-walled carbon nanotubes