Oxadiazoles and phenylquinoxalines as electron transport materials

The synthesis of a number of star-shaped oxadiazoles and phenylquinoxalines is described. These low molar mass compounds are able to form stable glasses with glass-transition temperatures up to 248 °C. The materials have been tested as electron transport layers in light-emitting devices (LEDs) toget...

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Bibliographic Details
Published in:Synthetic metals 1997-12, Vol.91 (1), p.223-228
Main Authors: Bettenhausen, J., Greczmiel, M., Jandke, M., Strohriegl, P.
Format: Article
Language:English
Subjects:
Applied sciences
Electronics
Exact sciences and technology
Light-emitting devices
Optoelectronic devices
Organic glasses
Organic polymers
Oxadiazole
Phenylquinoxaline
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
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Summary:The synthesis of a number of star-shaped oxadiazoles and phenylquinoxalines is described. These low molar mass compounds are able to form stable glasses with glass-transition temperatures up to 248 °C. The materials have been tested as electron transport layers in light-emitting devices (LEDs) together with poly(1,4-phenylene vinylene) (PPV). The two-layer LEDs show an improved quantum yield and brightness compared to PPV-monolayer LEDs.
ISSN:0379-6779
1879-3290
DOI:10.1016/S0379-6779(98)80035-0