Relaxation dynamics of photoexcitations in C60 films

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

doi:10.1016/S0009-2614(98)00985-3

Relaxation dynamics of photoexcitations in C₆₀ films

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

研究成果: Article › 査読

15 被引用数 (Scopus)

抄録

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.

本文言語	English
ページ（範囲）	475-480
ページ数	6
ジャーナル	Chemical Physics Letters
巻	295
号	5-6
DOI	https://doi.org/10.1016/S0009-2614(98)00985-3
出版ステータス	Published - 1998 10 23
外部発表	はい

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

文献へのアクセス

10.1016/S0009-2614(98)00985-3

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引用スタイル

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AU - Kobayashi, T.

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AB - 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.

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