Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 2
... physical mechanism , the conductivity is then expected to remain low since excitation of carriers across a gap of 2 eV is highly unlikely . Under these circumstances it is not surprising that a combination of ingeneous preparational ...
... physical mechanism , the conductivity is then expected to remain low since excitation of carriers across a gap of 2 eV is highly unlikely . Under these circumstances it is not surprising that a combination of ingeneous preparational ...
Page 34
... physical value of the dimerization ( y in ( 2.37 ) ) can be changed by varying a ( and also K , to keep a constant ) , but the physical origin of the optical gap is the dimerization in the chain . Importantly , as shown in Sects . 2.4 ...
... physical value of the dimerization ( y in ( 2.37 ) ) can be changed by varying a ( and also K , to keep a constant ) , but the physical origin of the optical gap is the dimerization in the chain . Importantly , as shown in Sects . 2.4 ...
Page 64
... physical observables such as the optical gap or the dimerization in the presence of e - e interactions . A relevant example is the Hartree - Fock approximation , which can be formulated variationally and yet produces qualitatively ...
... physical observables such as the optical gap or the dimerization in the presence of e - e interactions . A relevant example is the Hartree - Fock approximation , which can be formulated variationally and yet produces qualitatively ...
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A.J. Heeger atoms Baeriswyl band band gap behaviour bipolarons bond alternation bond lengths calculations chain charge carriers charged solitons Chem chemical shift cis-(CH conducting polymers configuration conjugated polymers Coulomb interaction coupling Cryst D.K. Campbell decreases defects dimerization discussed dopant dopant concentration dopant molecules doping doping levels e-e interactions electron correlation electron spin electron-electron interactions electron-phonon ENDOR energy excitations exciton experimental finite polyenes frequency function Hamiltonian Hartree-Fock hopping Hubbard model Hückel inter-chain kink Kivelson lattice Lett linewidth magnetic metallic molecular neutral solitons nonlinear nonlinear optical nuclear observed one-dimensional optical absorption optical gap pair parameter peak Peierls Peierls-Hubbard model phonon Phys polarons polyacetylene polyenes polypyrrole polythiophene properties proton quantum quasi-particles Raman relaxation resonance Sect Solid State Commun spectra spectrum spin density SSH model susceptibility symmetry Synth theoretical theory thermoelectric coefficient trans trans-(CH trans-polyacetylene transition triplet valence bond values Vardeny