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1 December 1997 Polypyridine as an efficient electron-transporting polymer for light-emitting diodes
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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.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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);

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