Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 84
... optical transition transfers charge between sites , the lowest optically allowed 1B state must have one double ... gap remains one of the most contro- versial theoretical issues in the field . From our discussions in Sects . 2.3 and 2.4 , it ...
... optical transition transfers charge between sites , the lowest optically allowed 1B state must have one double ... gap remains one of the most contro- versial theoretical issues in the field . From our discussions in Sects . 2.3 and 2.4 , it ...
Page 86
... optical gap . But before discussing how other experimental observables can be described within models incorporating both e - p and e - e interactions , it is instructive to compare the optical properties of polyacetylene to those of ...
... optical gap . But before discussing how other experimental observables can be described within models incorporating both e - p and e - e interactions , it is instructive to compare the optical properties of polyacetylene to those of ...
Page 180
... optical gap of trans- ( CH ) , is calculated to be only 0.1 eV in contrast to the measured gap of 1-2 eV . Realizing this , Ovchinnikov et al . [ 4.8 ] had argued that correlation effects alone would give rise to the optical gap in ( CH ) ...
... optical gap of trans- ( CH ) , is calculated to be only 0.1 eV in contrast to the measured gap of 1-2 eV . Realizing this , Ovchinnikov et al . [ 4.8 ] had argued that correlation effects alone would give rise to the optical gap in ( CH ) ...
Contents
Introduction | 1 |
An Overview of the Theory of лConjugated Polymers | 7 |
7 | 65 |
Copyright | |
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A.J. Heeger atoms Baeriswyl band band gap behaviour bipolarons bond alternation bond lengths calculations chain charged solitons Chem chemical shift cis-(CH conducting polymers configuration conjugated polymers Coulomb interactions coupling Cryst D.K. Campbell defects dependence dimerization discussed dopant 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 lattice Lett linewidth magnetic Metals molecular molecules 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 Solid State Commun spectra spectrum spin density SSH model structure susceptibility symmetry Synth temperature theoretical theory trans trans-(CH trans-polyacetylene transition triplet valence bond values Vardeny