Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 199
... absorption band at about 2 eV ( Fig . 4.13 ) . These bands are independent of both the chemical nature and the ... absorption due to the relatively abundant neutral solitons ( 1019 per cm3 ) in trans- ( CH ) ,. The striking result was ...
... absorption band at about 2 eV ( Fig . 4.13 ) . These bands are independent of both the chemical nature and the ... absorption due to the relatively abundant neutral solitons ( 1019 per cm3 ) in trans- ( CH ) ,. The striking result was ...
Page 201
... absorption peak at 1.35 eV behaves differently ( it dis- appears above about 200 K ) . The IR modes and the absorption feature at 0.45 eV arise , therefore , from the same charged defect . The absorption band at 1.35 eV is independent ...
... absorption peak at 1.35 eV behaves differently ( it dis- appears above about 200 K ) . The IR modes and the absorption feature at 0.45 eV arise , therefore , from the same charged defect . The absorption band at 1.35 eV is independent ...
Page 202
... absorption at 0.45 eV is accompanied by an increase of the absorption at 1.4 eV with relative change of about 0.1 and by bleaching in the intrinsic absorption region [ 4.97 ] . Measurements of the IR modes after a delay of 10-12 s do ...
... absorption at 0.45 eV is accompanied by an increase of the absorption at 1.4 eV with relative change of about 0.1 and by bleaching in the intrinsic absorption region [ 4.97 ] . Measurements of the IR modes after a delay of 10-12 s do ...
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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