Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 152
... gives a frequency dependence σ proportional to ws with an exponent of the order of 0.8 . The above - mentioned formula ... give a unified description of ac and dc conduction that is in agreement with experimental findings . A general ...
... gives a frequency dependence σ proportional to ws with an exponent of the order of 0.8 . The above - mentioned formula ... give a unified description of ac and dc conduction that is in agreement with experimental findings . A general ...
Page 182
... give rise to a broadening of the optical absorption feature at the band gap . In the case of cis - polyacetylene , helix formation would give rise to a dramatic increase of the band gap , from 1.5 eV in the planar conformation to 4.3 eV ...
... give rise to a broadening of the optical absorption feature at the band gap . In the case of cis - polyacetylene , helix formation would give rise to a dramatic increase of the band gap , from 1.5 eV in the planar conformation to 4.3 eV ...
Page 189
... give rise to a structural relaxation of the lattice which is accompanied by the emission of a phonon . This interpretation corresponds to the emission of optical phonons by hot carriers . Radiative emission into the ground state after ...
... give rise to a structural relaxation of the lattice which is accompanied by the emission of a phonon . This interpretation corresponds to the emission of optical phonons by hot carriers . Radiative emission into the ground state after ...
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Common terms and phrases
A.J. Heeger atoms Baeriswyl band gap behaviour bipolarons bond alternation bond lengths calculations chain charge carriers charged solitons Chem chemical shift cis-(CH conducting polymers conjugated polymers correlation Coulomb interaction coupling Cryst D.K. Campbell defects dielectric function diffusion dimerization discussed dopant dopant concentration dopant molecules doping doping levels e-e interactions effects electron correlation electron spin electron-electron interactions electron-phonon ENDOR energy excitations exciton experimental frequency function Hamiltonian Hartree-Fock hopping Hubbard model Hückel hyperfine interactions inter-chain Kivelson lattice Lett linewidth magnetic metallic molecular neutral solitons nonlinear nonlinear optical nuclear observed obtained one-dimensional optical absorption optical gap parameters peak Peierls Peierls-Hubbard model phonon Phys polarons polyacetylene polyenes polypyrrole polythiophene properties proton quantum quasi-particles Raman resonance samples Sect shown in Fig spectra spectrum spin density structure symmetry Synth tensor theory trans trans-(CH trans-polyacetylene transition valence values Vardeny