## Conjugated Conducting Polymers |

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Page 154

Photoexcitation

interaction but also to a lattice configuration such as that within a polaron . Indeed

, experiments in cis - ( CH ) , demonstrate that photoconductivity is not observable

, but ...

Photoexcitation

**leads**to an exciton - like state , due not only to Coulombinteraction but also to a lattice configuration such as that within a polaron . Indeed

, experiments in cis - ( CH ) , demonstrate that photoconductivity is not observable

, but ...

Page 166

... density of states at the Fermi level and the fact that it develops in a doping

range , where the dc conductivity has already attained rather high values , e . g .

for polyacetylene values above 104 S / m ( Fig . 3 . 14 ) . Increasing disorder

... density of states at the Fermi level and the fact that it develops in a doping

range , where the dc conductivity has already attained rather high values , e . g .

for polyacetylene values above 104 S / m ( Fig . 3 . 14 ) . Increasing disorder

**leads**to ...Page 230

Saturation of the electron spin transitions ( 1 43 and 244 )

with a flip - flop relaxation process ( W23 , W 32 ) , to a nuclear spin polarization

which can be as large as ye / Yn if no “ leakage ” effects are operative .

Saturation of the electron spin transitions ( 1 43 and 244 )

**leads**, in combinationwith a flip - flop relaxation process ( W23 , W 32 ) , to a nuclear spin polarization

which can be as large as ye / Yn if no “ leakage ” effects are operative .

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### Contents

Introduction | 1 |

An Overview of the Theory of rConjugated Polymers | 7 |

References | 114 |

Copyright | |

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### Common terms and phrases

absorption addition applied approach approximation atoms band behaviour bipolarons bond bond alternation calculations carriers chain charged chemical concentration conductivity configuration conjugated polymers correlation corresponding Coulomb Coulomb interactions coupling decreases defects density dependence described determined dimerization discussed dopant doping effects electron electron-electron electron-phonon ENDOR energy excitations expected experimental experiments field finite frequency function give ground Hamiltonian hopping Hubbard hyperfine important increase indicated interactions interpretation involving lattice leads length Lett limit magnetic materials measurements metallic methods modes motion neutral nuclear observed obtained one-dimensional optical pair parameter peak phonon Phys Physics polarons polyacetylene polyenes polymers position properties range relaxation resonance respect samples Sect shift shown shows similar single Solid soliton spectra spectrum spin structure studies symmetry Synth temperature theoretical theory trans-(CH transition transport units values whereas