Electrical properties of polymer/metal interface in polymer light-emitting devices: electron injection barrier suppression
Nenhuma Miniatura disponível
Data
2006-05-01
Autores
Olivati, C. A.
Carvalho, AJF
Balogh, D. T.
Faria, R. M.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Springer
Resumo
The electrical characterization of a high efficient multilayer polymer light emitting diode using poly[(2-methoxy-5-hexyloxy)-p-phenylenevinylene] as the emissive layer and an anionic fluorinated surfactant as the electron transport layer was performed. For the sake of comparison, a conventional single layer device was fabricated. The density current vs. voltage measurements revealed that the conventional device has a higher threshold voltage and lower current compared to the surfactant modified device. The effective barrier height for electron injection was suppressed. The influence of the interfaces and bulk contributions to the dc and high frequencies conductivities of the devices was also discussed. (c) 2006 Springer Science + Business Media, Inc.
Descrição
Palavras-chave
Como citar
Journal of Materials Science. New York: Springer, v. 41, n. 10, p. 2767-2770, 2006.