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- W1980813294 abstract "The impact of electrode modification on the performance of polymeric organic light-emitting diodes consisting of poly(vinyl carbazole) doped with the phosphorescent molecule fac tris(2-phenylpyridine) iridium as the emitter layer, indium-tin-oxide anodes, and magnesium/silver, aluminum, or calcium/aluminum cathodes, is explored. Incorporation of 3,4-poly(ethylene dioxythiophene):poly(styrene sulfonate) at the anode is found to improve the device efficiency but have little impact on drive voltage. Insertion of lithium fluoride at the cathode resulted in no improvement in performance for magnesium/silver and aluminum cathodes, but significant improvement in efficiency and drive voltage for calcium/aluminum cathodes. Excellent device performance is observed for all three metals used in conjunction with cesium fluoride. Through optimization of the electrodes and emitter layer thickness, devices exhibiting efficiencies as high as 37.3 cd/A are realized without the use of separate electron transport or exciton blocking layers." @default.
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- W1980813294 date "2004-05-01" @default.
- W1980813294 modified "2023-09-23" @default.
- W1980813294 title "High-efficiency phosphorescent-guest–polymeric-host organic light-emitting diodes" @default.
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- W1980813294 doi "https://doi.org/10.1016/j.synthmet.2003.10.013" @default.
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