Controlling the Surface Composition of Poly(3,4-ethylene dioxythiophene)-Poly(styrene sulfonate) Blends by Heat Treatment

Controlling the Surface Composition of Poly(3,4-ethylene dioxythiophene)-Poly(styrene sulfonate) Blends by Heat Treatment

Poly(3,4 ethylene dioxythiophene)/poly(styrene sulfonate) (PEDT/PSS) blends are widely used in organic light‐emitting diodes (OLEDs) to enhance their performance. Using neutron reflectometry to study such blends, it is shown that substantial segregation of the blend components occurs at the surface...

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Veröffentlicht in:Advanced materials (Weinheim) 2004-05, Vol.16 (9-10), p.807-811
Hauptverfasser: Jukes, P. C., Martin, S. J., Higgins, A. M., Geoghegan, M., Jones, R. A. L., Langridge, S., Wehrum, A., Kirchmeyer, S.
Format: Artikel
Sprache:eng
Schlagworte:
4-ethylenedioxythiophene
Light-emitting diodes
Light‐emitting diodes, organic
Neutron reflectometry
organic
Poly
Poly(3,4‐ethylenedioxythiophene)
Poly(styrene sulfonate)
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Zusammenfassung:Poly(3,4 ethylene dioxythiophene)/poly(styrene sulfonate) (PEDT/PSS) blends are widely used in organic light‐emitting diodes (OLEDs) to enhance their performance. Using neutron reflectometry to study such blends, it is shown that substantial segregation of the blend components occurs at the surface (see Figure), a result that will have implications both for the performance and for the stability of optoelectronic devices using PEDT/PSS.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200306487