Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
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Page 48
Electronic Structure and Defect States Dionys Baeriswyl. In order to determine the kink energy we consider first an even - numbered chain where kinks and antikinks can be created in pairs . For a well separated kink - antikink pair the ...
Electronic Structure and Defect States Dionys Baeriswyl. In order to determine the kink energy we consider first an even - numbered chain where kinks and antikinks can be created in pairs . For a well separated kink - antikink pair the ...
Page 61
... kink - antikink pairs leads to a pronounced Urbach tail in optical absorption and possibly to a threshold for photo- conduction below the interband absorption edge ( Su and Lu Yu 1983 ) . Furthermore the symmetry of kink- antikink pairs ...
... kink - antikink pairs leads to a pronounced Urbach tail in optical absorption and possibly to a threshold for photo- conduction below the interband absorption edge ( Su and Lu Yu 1983 ) . Furthermore the symmetry of kink- antikink pairs ...
Page 84
... kink defects remain confined within pairs . Unbinding will occur as soon as the confinement potential is sufficiently screened due to thermal excita- tions of additional kink - antikink pairs , namely at the critical temperature Tc ...
... kink defects remain confined within pairs . Unbinding will occur as soon as the confinement potential is sufficiently screened due to thermal excita- tions of additional kink - antikink pairs , namely at the critical temperature Tc ...
Common terms and phrases
A.J. Heeger absorption amplitude approximation associated assume Baeriswyl band becomes Bishop bond alternation bond length bond order boundary calculations Campbell chain changes charge conducting configuration consider constant continuum limit correlation corresponds coupling defect density depend described determined dimerization discrete discuss disorder distortion dynamical effects electronic energy equation et al expected experiments extent field fluctuations force function given gives ground Hamiltonian hand Hückel impurity increasing integral interaction interchain coupling involved kink lattice leads Lett levels limit MacDiarmid Mele modes Notice observed obtained optical parameter particular Peierls phase phonon Phys Physics points polaron polyacetylene polymers potential presented produced properties proposed represents respect Rice Schrieffer self-consistency shown single Solid soliton solution strongly structure temperature theory whereas yields