The physical and chemical properties of the reaction product between trimethylammonium iodide and TCNQ. a ternary 1-D semiconductor with ‘metal-like’ conductivity

  • P. M. Chaikin
  • P. Coppens
  • J. E. Deis
  • A. J. Epstein
  • J. S. Miller
  • D. B. Tanner
  • P. R. van Tilborg
8. New Materials
Part of the Lecture Notes in Physics book series (LNP, volume 96)


New results on an extensive series of physical and chemical measurements on (NMe3H+)(I3)1/3 (TCNQ) are reported. The data, including transverse conductivity and thermoelectric power, reflectivity and X-ray studies, indicate that this system is a semiconductor at high temperatures (>240K) with a strongly temperature dependent mobility despite its lsέtal-like’ conductivity. A semiconductor-semiconductor transition is observed at 150K with a second transition suggested at 89K.The role of large on site coulomb repulsion (U) is indicated. An unusual variation in the degree of disorder among the iodine stacks is reported, with no change observed in the iodine order at the 150K transition.


Electron Spin Resonance Dielectric Function Thermoelectric Power NATO Advance Study Institute 150K Transition 
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Copyright information

© Springer-Verlag 1979

Authors and Affiliations

  • P. M. Chaikin
    • 1
  • P. Coppens
    • 2
  • J. E. Deis
    • 3
  • A. J. Epstein
    • 4
  • J. S. Miller
    • 5
  • D. B. Tanner
    • 3
  • P. R. van Tilborg
    • 2
  1. 1.Department of PhysicsUniversity of CaliforniaLos Angeles
  2. 2.Department of ChemistryState University of New York at BuffaloBuffalo
  3. 3.Department of PhysicsThe Ohio State UniversityColumbus
  4. 4.Xerox Webster Research CenterRochester
  5. 5.Rockwell International Science CenterThousand Oaks

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