Operating modes of sandwiched light-emitting electrochemical cells
Impacto
Scholar |
Otros documentos de la autoría: Lenes, Martijn; Garcia-Belmonte, Germà; Tordera, Daniel; Pertegás, Antonio; Bisquert, Juan; Bolink, Henk J.
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2507
comunitat-uji-handle3:10234/6973
comunitat-uji-handle4:
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http://dx.doi.org/10.1002/adfm.201002587 |
Metadatos
Título
Operating modes of sandwiched light-emitting electrochemical cellsAutoría
Fecha de publicación
2011-03-14Editor
WileyISSN
1616-3028Cita bibliográfica
Advanced functional materials, 2011, May, V. 21 (9)Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://onlinelibrary.wiley.com/doi/10.1002/adfm.201002587/abstractVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Light-emitting electrochemical cells (LECs) are promising lighting devices in which the redistribution of ionic charges allows for double electronic carrier injection from air-stable electrodes. Uncertainties about ... [+]
Light-emitting electrochemical cells (LECs) are promising lighting devices in which the redistribution of ionic charges allows for double electronic carrier injection from air-stable electrodes. Uncertainties about the mode of operation are limiting the progress of these devices. Using fast (with respect to the current growth time) but resolutive electrical measurement techniques, the electronic transport mechanism in state-of-the-art sandwiched devices can be monitored as a function of the operation time. The results indicate the formation of doped transport layers adjacent to the electrodes that reduces the extent of the central neutral light-emitting layer where electronic transport is limited by space-charge. Prolonged growth of the doped regions beyond that required for efficient injection should be prevented, as this decreases the efficiency and leads to low luminance devices. [-]
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info:eu-repo/semantics/restrictedAccess
info:eu-repo/semantics/restrictedAccess
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