Electronic structures of three-dimensional C60 polymers studied by high-energy-resolution electron energy-loss spectroscopy based on transmission electron microscopy

Yohei Sato, Masami Terauchi, Shoji Yamanaka

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Abstract Electronic structures of two three-dimensional (3D) C60 polymers, which are Immm (3D C60-Immm) and Fcc (3D C60-Fcc) crystal symmetry, were investigated by high energy-resolution electron energy-loss spectroscopy based on transmission electron microscopy. Dielectric functions of 3D C60-Immm and 3D C60-Fcc were derived from valence electron excitation spectra by Kramers-Kronig analysis. The K-shell excitation spectrum of 3D C60-Immm specimen showed a step-like structure at the onset, which might correspond to Fermi edge. Therefore, metallic property of 3D C60-Immm could be confirmed. On the other hand, Fermi edge could not be observed for 3D C60-Fcc, suggesting to be a semiconductor.

Original languageEnglish
Article number32863
Pages (from-to)90-95
Number of pages6
JournalChemical Physics Letters
Volume626
DOIs
Publication statusPublished - 2015 May 1

ASJC Scopus subject areas

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

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