Relaxation dynamics of photoexcitations in C60 films

S. Ishihara, I. Ikemoto, S. Suzuki, K. Kikuchi, Y. Achiba, T. Kobayashi

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15 Citations (Scopus)

Abstract

Time-resolved difference absorption spectra of polycrystalline thin films of C60 were measured by femtosecond pump-probe spectroscopy. The decay dynamics of the excited state can be explained in terms of a model of localized excitations. Self-trapped excitons (STEs) are formed after photoexcitation and then converted to polarons. The polarons mainly recombine when they encounter each other after intersite hopping. The decay times of the STEs and polarons are estimated to be 570±120 fs and 54±7 ps, respectively.

Original languageEnglish
Pages (from-to)475-480
Number of pages6
JournalChemical Physics Letters
Volume295
Issue number5-6
DOIs
Publication statusPublished - 1998 Oct 23
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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    Ishihara, S., Ikemoto, I., Suzuki, S., Kikuchi, K., Achiba, Y., & Kobayashi, T. (1998). Relaxation dynamics of photoexcitations in C60 films. Chemical Physics Letters, 295(5-6), 475-480. https://doi.org/10.1016/S0009-2614(98)00985-3