Temperature dependence of electronic optical absorption in (NMe4+· TCNQ)2TCNQ

N. Kuroda, Hasanudin, T. Sugimoto, K. Ueda, M. Kohama, N. Toyota

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)


The temperature dependence of the linearly polarized optical absorption spectrum has been measured in single crystals of (NMe4+·TCNQ)2TCNQ, where NMe4 and TCNQ are tetramethylammonium and tetracyanoquinodimethane, respectively, in the temperature range between -100 and +150°C. In addition to intense TCNQ dimer bands, strongly temperature-dependent satellite bands appear at around 1.3 eV and 1.9 eV. The singular behavior of the intensity and peak position of the 1.3 eV band shows that a second order phase transition takes place at 126°C. The origin of this band is discussed in relation to the mechanism of the phase transition.

Original languageEnglish
Pages (from-to)2327-2328
Number of pages2
JournalSynthetic Metals
Issue number1-3
Publication statusPublished - 1999 Jun 24
Externally publishedYes
EventProceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier
Duration: 1998 Jul 121998 Jul 18

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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