Polypyridine as an efficient electron-transporting polymer for light-emitting diodes

Stuart Dailey; Mounir Halim; Eymard Rebourt; Ifor D. W. Samuel; Andrew P. Monkman

doi:10.1117/12.284170

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1 December 1997 Polypyridine as an efficient electron-transporting polymer for light-emitting diodes

Stuart Dailey, Mounir Halim, Eymard Rebourt, Ifor D. W. Samuel, Andrew P. Monkman

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Proceedings Volume 3148, Organic Light-Emitting Materials and Devices; (1997) https://doi.org/10.1117/12.284170
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

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.

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Stuart Dailey, Mounir Halim, Eymard Rebourt, Ifor D. W. Samuel, and Andrew P. Monkman "Polypyridine as an efficient electron-transporting polymer for light-emitting diodes", Proc. SPIE 3148, Organic Light-Emitting Materials and Devices, (1 December 1997); https://doi.org/10.1117/12.284170

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