Charge-transfer transitions between wires and spacers in an inorganic-organic quasi-one-dimensional crystal methylviologen lead iodide

Jun Ichi Fujisawa, Teruya Ishihara

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

We have studied the optical property and electronic structure of an inorganic-organic quasi-one-dimensional crystal, methylviologen lead iodide. Two absorption bands were observed in the near ultraviolet and visible regions. The one is an absorption band at 3.1 eV with a large oscillator strength, which is assigned to one-dimensional excitons confined in the inorganic chains. The other is a broad band observed between 2.0 and 2.8 eV and attributed to charge-transfer transitions from the lead iodide chains to the methylviologen molecules. From the luminescence excitation spectra, it is found that there are two kinds of charge-transfer transitions from the valence band and the nonbonding state of the inorganic chains to the lowest unoccupied molecular orbital of methylviologen.

Original languageEnglish
Article number113203
Pages (from-to)113203-1-113203-4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume70
Issue number11
DOIs
Publication statusPublished - 2004 Sep 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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