A B Walker et al 2002 J. Phys.: Condens. Matter 14 9825 doi:10.1088/0953-8984/14/42/303
A B Walker1, A Kambili and S J Martin
Show affiliationsOrganic electroluminescent devices (OEDs) emit light when an electric current is applied to a thin film section. They arise from two main technology branches—small molecules and light emitting polymers. Apart from the insight offered into the fundamentals of their physics, which is relevant to topics such as electrical transport in biological systems and molecular computers, understanding how the mobilities in these systems vary with morphology and composition enables the design of improved materials for technological requirements, e.g. fast switching speeds for active matrix displays and polymer field effect transistors. In this review, we have focussed on the models of transport in OEDs that address the unusual nature of this transport and underpin device design. The review concludes with the following point: as new materials for use in OEDs continue to appear, modelling is essential for the prediction of their transport properties, which in turn leads to the establishment of fundamental trends in the behaviour of devices employing them.
85.60.Jb Light-emitting devices
85.60.Bt Optoelectronic device characterization, design, and modeling
72.80.Le Polymers; organic compounds (including organic semiconductors)
Soft matter, liquids and polymers
Issue 42 (28 October 2002)
Received 5 February 2002, in final form 23 May 2002
Published 11 October 2002
A Corrigendum for this article has been published in 2002 J. Phys.: Condens. Matter 14 12271
A B Walker et al 2002 J. Phys.: Condens. Matter 14 9825
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