Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 88
... Triplet Gap and Magnetic Excitations Although not accessible to the ( spin - conserving ) optical transitions , triplet excitations from the ground state have long been of interest in studies of models for conducting polymers ( see e.g. ...
... Triplet Gap and Magnetic Excitations Although not accessible to the ( spin - conserving ) optical transitions , triplet excitations from the ground state have long been of interest in studies of models for conducting polymers ( see e.g. ...
Page 89
... triplet exciton in polydiacetylene is about 0.75 eV , which is larger than that of the singlet exciton ( 0.5 eV ) in the same material . To date , the location of the lowest - lying triplet state in trans - polyacetylene and in aromatic ...
... triplet exciton in polydiacetylene is about 0.75 eV , which is larger than that of the singlet exciton ( 0.5 eV ) in the same material . To date , the location of the lowest - lying triplet state in trans - polyacetylene and in aromatic ...
Page 290
... triplet state [ 5.173 ] . Subsequent direct observation of the triplet state , whose ESR spectrum is shown in Fig . 5.45 , by Winter et al . [ 5.174 ] led to the conclusion that a pair of soliton - like quasi - particles in a triplet ...
... triplet state [ 5.173 ] . Subsequent direct observation of the triplet state , whose ESR spectrum is shown in Fig . 5.45 , by Winter et al . [ 5.174 ] led to the conclusion that a pair of soliton - like quasi - particles in a triplet ...
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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