Understanding electron flow in conducting polymer films : injection, mobility, recombination and mesostructure

• Autor(a) principal: Stoneham, A. M.
• Data de Publicação: 2002
• Outros Autores: Ramos, Marta M. D., Almeida, A. M., Correia, Helena M. G., Ribeiro, R. M., Ness, H., Fisher, A. J.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/1822/3385
• topic: Light-emitting-diodes; Disordered hopping system; Monte-carlo simulation; Conjugated polymers; Molecular wires; Interchain interactions; Charge-transport; Electroluminescence; Dynamics; Metal; Science & Technology

We survey the current state of models for electronic processes in conducting polymer devices, especially light-emitting diodes. We pay special attention to several processes that have been somewhat neglected in the previous literature: charge injection from electrodes into a polymer sample, mobility of charge-or energy-carrying defects within a single molecule and (more briefly) transfer of carriers between molecules and the interaction between the charge transport and the mesostructure of the polymer. Within all these areas substantial. progress has been made in recent years in elucidating the important physics, but further progress is needed to make quantitative contact with experiment.