Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
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Page 3
... trans - polyacetylene the C - C and C = C bonds can be interchanged without changing their respective environment . Trans- ( CH ) is therefore two - fold degenerate with respect to the bond alternation sequence while the other compounds ...
... trans - polyacetylene the C - C and C = C bonds can be interchanged without changing their respective environment . Trans- ( CH ) is therefore two - fold degenerate with respect to the bond alternation sequence while the other compounds ...
Page 22
... polyacetylene is if the Peierls instability is indeed the dominant mechanism leading to the observed semiconducting behaviour . The optical gap E in trans - polyacetylene g has been measured by several groups . Depending on how the ...
... polyacetylene is if the Peierls instability is indeed the dominant mechanism leading to the observed semiconducting behaviour . The optical gap E in trans - polyacetylene g has been measured by several groups . Depending on how the ...
Page 52
... trans polyacetylene . This is confirmed by optical absorption experiments ( e.g. Fincher et al . 1979 ) which give 24。= 1.8 eV for cis and 1.4 eV for trans polyacetylene . indicates that y << 1 in which case we may represent It further ...
... trans polyacetylene . This is confirmed by optical absorption experiments ( e.g. Fincher et al . 1979 ) which give 24。= 1.8 eV for cis and 1.4 eV for trans polyacetylene . indicates that y << 1 in which case we may represent It further ...
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