Electronic Structure of Conductive and Conjugated Polymers

  • Yoshikazu Tanabe
Part of the Springer Series in Materials Science book series (SSMATERIALS, volume 35)


Ordinary polymers are used predominantly as insulators and will continue to be in the future. The discovery of high conductivity in change-transfer complexes formed with polyacetylene (PA) in 1977 [1,2] has aroused considerable excitement among polymer scientists and condensed matter physicists throughout the world. Although insulating carbon-chain polymers have a saturated electronic structure in which all of the four carbon valence electrons are combined in covalent bonds, conducting carbon-chain polymers have a conjugated structure in which sp2 + pz hybridization leads to one unpaired electron per carbon atom. The delocalized (extended) π-electrons form a band structure which exhibits semiconducting or even metallic properties.


Moving Domain Wall Conjugate Polymer Complex Conductivity Conductivity Relaxation Polaron State 
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© Springer-Verlag Berlin Heidelberg 1999

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  • Yoshikazu Tanabe

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