Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
From inside the book
Results 1-3 of 48
Page 25
... approach only the bare resonance integrals t + 1 were included . Despite its simplicity , the Hückel approach played a critical role in the development of the theory of finite polyenes and л - conjugated systems [ 2.14 ] , with the ...
... approach only the bare resonance integrals t + 1 were included . Despite its simplicity , the Hückel approach played a critical role in the development of the theory of finite polyenes and л - conjugated systems [ 2.14 ] , with the ...
Page 34
... approach the bond alternation and the bandgap , which as we shall later show is precisely the gap for optical excitations , are directly related and can be described by a single parameter 40. Of course , for given 4。( and 2 ) the ...
... approach the bond alternation and the bandgap , which as we shall later show is precisely the gap for optical excitations , are directly related and can be described by a single parameter 40. Of course , for given 4。( and 2 ) the ...
Page 67
... approaches can only be applied to short range interactions ( V ; = 0 , j > 2 ) , but this is not a limitation in principle . The Green's function approach is immediately suitable for any range of interaction and indeed has been applied ...
... approaches can only be applied to short range interactions ( V ; = 0 , j > 2 ) , but this is not a limitation in principle . The Green's function approach is immediately suitable for any range of interaction and indeed has been applied ...
Other editions - View all
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