Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 64
... finite clusters , provide essential physical and analytic insight that can be difficult to obtain from more complete but highly numerical schemes . In the area of л - conjugated polymers , variational methods which have been applied ...
... finite clusters , provide essential physical and analytic insight that can be difficult to obtain from more complete but highly numerical schemes . In the area of л - conjugated polymers , variational methods which have been applied ...
Page 87
... finite polyenes and the larger gaps of the PDA polymers compared to trans- ( CH ) ,. Two different explanations have been proposed . Firstly , the PDAs have , in addition to the conjugated π - orbitals , localized ' -orbitals and these ...
... finite polyenes and the larger gaps of the PDA polymers compared to trans- ( CH ) ,. Two different explanations have been proposed . Firstly , the PDAs have , in addition to the conjugated π - orbitals , localized ' -orbitals and these ...
Page 165
... finite and constant values that persist down to several mK [ 3.24 , 85 ] . Whereas the Pauli para- magnetism develops rather abruptly in polyacetylene , in others , e.g. polythiophene , a gradual increase with doping is observed . In ...
... finite and constant values that persist down to several mK [ 3.24 , 85 ] . Whereas the Pauli para- magnetism develops rather abruptly in polyacetylene , in others , e.g. polythiophene , a gradual increase with doping is observed . In ...
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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