Solitons in Polyacetylene: Effects of Dilute Doping on Optical Absorption Spectra
نویسندگان
چکیده
منابع مشابه
Optical absorption from polarons in a model of polyacetylene
We present a theoretical calculation, within a continuum electron-phonon-coupled model, of the optical absorption due to polarons in polyacetylene [{CH),]. Our results can be applied to both transand cis-(CH)„, as well as potentially to other polymers (polypyroles, polyparaphenylenes) in which polarons are present. We establish that the essential signature of polaron absorption is the existence...
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The optical excitations in C70 and higher fullerenes, including isomers of C76, C78, and C84, are theoretically investigated. We use a tight binding model with long-range Coulomb interactions, treated by the Hartree-Fock and configuration-interaction methods. We find that the optical excitations in the energy region smaller than about 4 eV have most of their amplitudes at the pentagons. The osc...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1980
ISSN: 0031-9007
DOI: 10.1103/physrevlett.45.1209