## Conjugated conducting polymers |

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Page 136

It can be shown that such a system cannot exist as a one-dimensional metal with

a half-filled

The reason for this is either the Peierls instability, or electron correlation, or a ...

It can be shown that such a system cannot exist as a one-dimensional metal with

a half-filled

**band**, but rather as an insulator with a gap forming at the Fermi level.The reason for this is either the Peierls instability, or electron correlation, or a ...

Page 166

in the case of an energy-independent mean free path and parabolic

N(EF) denotes the density of states at the Fermi level for both spin orientations

and n the total density of charge carriers. Other quantities depending on N(EF)

are ...

in the case of an energy-independent mean free path and parabolic

**bands**. HereN(EF) denotes the density of states at the Fermi level for both spin orientations

and n the total density of charge carriers. Other quantities depending on N(EF)

are ...

Page 182

With a twist angle of 90c, conjugation is destroyed and concomitantly, the density

of states significantly altered. Therefore, an assumed helicity of the pyrrole

polymer might be expected to reduce the

give rise ...

With a twist angle of 90c, conjugation is destroyed and concomitantly, the density

of states significantly altered. Therefore, an assumed helicity of the pyrrole

polymer might be expected to reduce the

**band**gap and rotational disorder togive rise ...

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### Contents

Introduction | 1 |

An Overview of the Theory of Conjugated Polymers | 7 |

References | 114 |

Copyright | |

7 other sections not shown

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### Common terms and phrases

A.J. Heeger AsF5 atoms Baeriswyl band band gap behaviour bipolarons bond alternation bond lengths calculations CH)x chain charged solitons Chem chemical shift coefficient conducting polymers configuration conjugated polymers correlation Coulomb interactions coupling Cryst D.K. Campbell decreases defects dependence dimerization discussed dopant dopant concentration doping doping levels e-e interactions effects electron spin electron-electron interactions electron-phonon ENDOR energy excitations exciton experimental Fermi finite polyenes frequency function Hamiltonian Hartree-Fock Heeger hopping Hubbard model hyperfine interactions inter-chain kink lattice Lett linewidth magnetic metallic molecular neutral solitons nonlinear nonlinear optical nuclear observed obtained one-dimensional optical absorption optical gap parameter peak Peierls Peierls-Hubbard model phonon Phys polarons polyacetylene polyenes polypyrrole polythiophene properties proton quantum quasi-particles Raman relaxation resonance Sect shown in Fig soliton spectra spectrum spin density SSH model structure symmetry Synth temperature theoretical theory trans-(CH)x transition triplet valence bond values Vardeny