Skip navigation
Use este identificador para citar ou linkar para este item: http://repositorio.unb.br/handle/10482/6155
Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
ARTIGO_PolaronDynamicsImpurities.pdf59,63 kBAdobe PDFVisualizar/Abrir
Registro completo de metadados
Campo DCValorIdioma
dc.contributor.authorLima, Matheus Paes-
dc.contributor.authorSilva, Geraldo Magela e-
dc.date.accessioned2010-12-10T14:10:32Z-
dc.date.available2010-12-10T14:10:32Z-
dc.date.issued2005-12-
dc.identifier.citationLIMA, M. P.; SILVA, G. M. e. Polaron dynamics with impurities in conjugated polymers. Brazilian Journal of Physics, São Paulo, v. 35, n. 4A, p. 961-964, dez. 2005. Disponível em: <http://www.scielo.br/pdf/bjp/v35n4a/a09v354a.pdf>. Acesso em: 9 dez. 2010. doi: 10.1590/S0103-97332005000600009.en
dc.identifier.urihttp://repositorio.unb.br/handle/10482/6155-
dc.description.abstractWe study the charge transport by polarons in conjugated polymers in the presence of impurities. The effects on the polaron motion due to the symmetry of the chain is considered. The polaron dynamics in doped conjugated polymers is numerically studied using the Su-Schrieffer-Heeger (SSH) model combined with the Pariser-Parr- Pople (PPP) model modified to include an external electric field and the Brazovskii-Kirova (BK) symmetry breaking interaction. The time dependent Hartree-Fock approximation is used. The electric field is used to accelerate the polaron in a polymer chain. Polaron trapped by the impurity and polaron-impurity collisions are considered. When the polaron-structure is around the impurity site a charge oscillation can be observed. Nevertheless, when there are collisions between the polaron and the impurity, the polaron-structure can pass, be trapped or be reflected. These effects are determined by the strength of the radical parameter and by the electric field intensity. The effects on the polaron are analyzed and an effective potential is determined. Therefore, the effective potential determines the polaron behavior for each case, as the polaron pass, or it is trapped or reflected by an impurity.en
dc.language.isoInglêsen
dc.rightsAcesso Abertoen
dc.titlePolaron dynamics with impurities in conjugated polymersen
dc.typeArtigoen
dc.subject.keywordPolímerosen
dc.subject.keywordPolaronen
dc.subject.keywordFísicaen
dc.identifier.doihttps://dx.doi.org/10.1590/S0103-97332005000600009en
Aparece nas coleções:Artigos publicados em periódicos e afins

Mostrar registro simples do item Visualizar estatísticas



Este item está licenciada sob uma Licença Creative Commons Creative Commons