Dissipative dynamics of charged polarons in organic molecules.
J Phys Condens Matter
; 23(30): 305401, 2011 Aug 03.
Article
em En
| MEDLINE
| ID: mdl-21753238
ABSTRACT
Within a non-adiabatic dynamical method, we simulate charged polaron motion and dissociation in an organic molecule in the presence of dissipation. The dissipation, represented by damping, is introduced to investigate the influence of temperature on the mobility of carriers. We find that the velocity of the polaron has an inversely linear dependence on the damping, and hence the relationship between mobility and temperature is a power law, which is in agreement with the corresponding experiments. We also find that the velocity of the polaron exhibits a continuous dependence on the electric field in the presence of dissipation. In addition, we find that, in the presence of dissipation, the critical field that dissociates a polaron is reduced.
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Base de dados:
MEDLINE
Assunto principal:
Físico-Química
/
Conversão Gênica
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article