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Proceedings Paper

Polypyridine as an efficient electron-transporting polymer for light-emitting diodes
Author(s): Stuart Dailey; Mounir Halim; Eymard Rebourt; Ifor D. W. Samuel; Andrew P. Monkman
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Paper Abstract

In polymer light-emitting diodes (LEDs), a pre-requisite for efficient operation is the balance of injection and transport of electrons and holes. This has stimulated much research into suitable electron-injecting and transporting materials. We report the use of polypyridine as an efficient electron-transporting layer in polymer LEDs. We have achieved much improved LED performance by incorporating polypyridine as an electron-transporting polymer in LEDs using either poly(p-phenylenevinylene) or poly(2-methoxy, 5- (2' ethyl-hexyloxy)-p-phenylenevinylene) as the hole- transporting and emitting layer. the optimization of the layer thickness leads to increases in efficiency of up to a factor 60 over comparable single layer devices.

Paper Details

Date Published: 1 December 1997
PDF: 7 pages
Proc. SPIE 3148, Organic Light-Emitting Materials and Devices, (1 December 1997);
Show Author Affiliations
Stuart Dailey, Univ. of Durham (United Kingdom)
Mounir Halim, Univ. of Durham (United Kingdom)
Eymard Rebourt, Univ. of Durham (United Kingdom)
Ifor D. W. Samuel, Univ. of Durham (United Kingdom)
Andrew P. Monkman, Univ. of Durham (United Kingdom)

Published in SPIE Proceedings Vol. 3148:
Organic Light-Emitting Materials and Devices
Zakya H. Kafafi, Editor(s)

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