Photoelectron spectra of a higher fullerene compound C82 and its potassium complex

S. Hino, K. Matsumoto, S. Hasegawa, K. Iwasaki, K. Yakushi, T. Morikawa, T. Takahashi, K. Seki, K. Kikuchi, S. Suzuki, I. Ikemoto, Y. Achiba

Research output: Contribution to journalArticle

Abstract

Photoelectron spectra of C82, which has been reported to contain metal atoms inside, are measured with a synchroton radiation light source. The spectra resemble those of C84. The spectra begin at 1.15 eV below the Fermi level (Ef). The first band consists of two peaks located at 2.2 eV and 3.3 eV accompanied by a slight shoulder structure at the lower binding energy side. This shoulder is not observed in C84. The intensity of the two peaks of the first band oscillates with the incident photon energy change, as are observed in C60, C70 and C84. The second band locates between 4 and 6.2 eV with a peak at 5.3 eV and a shoulder at the lower binding energy side. The third band locates between 6.2 and 9 eV and consists of a peak at 7.8 eV and a distinct shoulder at 6.5 eV. Potassium dosing brings a new band between the Ef and the first band and its intensity grows as the potassium dosage increases. The spectral onset approaches toward the Ef in accordance with increase of potassium dosage but it does not cross the Ef, which indicates a semiconductive nature of KxC82.

Original languageEnglish
Pages (from-to)3191-3195
Number of pages5
JournalSynthetic Metals
Volume56
Issue number2-3
DOIs
Publication statusPublished - 1993 Apr 5

Keywords

  • C
  • KC
  • fullerene
  • fulleride
  • ultraviolet photoelectron spectra

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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    Hino, S., Matsumoto, K., Hasegawa, S., Iwasaki, K., Yakushi, K., Morikawa, T., Takahashi, T., Seki, K., Kikuchi, K., Suzuki, S., Ikemoto, I., & Achiba, Y. (1993). Photoelectron spectra of a higher fullerene compound C82 and its potassium complex. Synthetic Metals, 56(2-3), 3191-3195. https://doi.org/10.1016/0379-6779(93)90101-2