Optical response of C60 and C70 fullerenes: Exciton and lattice fluctuation effects

1994/08/08 by Kikuo Harigaya, Shuji Abe
Chemistry · Materials Science · Physics and Astronomy · #Diamond and Carbon-based Materials Research #Fullerene Chemistry and Applications #Graphene research and applications #cond-mat

paper · pdf · doi:10.1016/0379-6779(94)02902-b

published as Synthetic Metals 70 (1995) 1415-1416 · Proceedings paper of ICSM94

arxiv created 1994/08/08 · openalex publication_date 1995/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Molecular exciton effects in the neutral and maximally doped C₆₀ (C₇₀) are considered using a tight binding model with long-range Coulomb interactions and bond disorder. By comparing calculated and observed optical spectra, we conclude that relevant Coulomb parameters for the doped cases are about half of those of the neutral systems. The broadening of absorption peaks is well simulated by the bond disorder model.

Citations

• Solitons in conducting polymers

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