Original scientific paper

Electroluminescence from Double Layer Organic Light-emitting Diodes Using Dehydrocoupled Polysilanes as Hole Transport Layers

Markus Wuchse ; Institut fitr Festkorperphysik, Technische Universitat Graz, Petersgasse 16/11, A-8010 Graz, Austria
Stefan Tasch ; Institut fitr Festkorperphysik, Technische Universitat Graz, Petersgasse 16/11, A-8010 Graz, Austria
G&uumlaut;nther Leising ; Institut fitr Festkorperphysik, Technische Universitat Graz, Petersgasse 16/11, A-8010 Graz, Austria
Florian Lunzer ; Institut fitr Anorganische Chemie, Technische Universitat Graz, Stremayrgasse 16/IV, A-8010 Graz, Austria
Christoph Marschner ; Institut fitr Anorganische Chemie, Technische Universitat Graz, Stremayrgasse 16/IV, A-8010 Graz, Austria

Abstract

In this article, four polysilanes are used as hole transporting materials, together with the electroluminescent metal complex 8-hydroxyquinoline aluminium (Alq₃), in organic double layer light emitting diodes (LED). It appears that the side chain substituents strongly influence the device performance. Amino-substituted polysilanes show stable device performance and a power efficiency of 0.33 lm W-1. This is an increase by more than 100% compared to the Alq₃ single layer LED (0.15 lm W-1).

Keywords

electroluminescence; polysilanes; double layer light-emitting diode; LED

Hrčak ID:

131961

URI

https://hrcak.srce.hr/131961

Publication date:

1.11.2001.

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