Search results for "Polymer light emitting diodes"

showing 2 items of 2 documents

Efficient Polymer Light‐Emitting Diode Using Air‐Stable Metal Oxides as Electrodes

2009

Poly(phenylenevinylene)‐based organic light‐emitting diodes (OLEDs) are fabricated using air‐stable metal oxides as electrodes, producing very efficient and bright electroluminescent devices. Efficiencies of 8 cd A−1 and luminances above 20000 cd m−2 are obtained, comparable to the values reported for classic OLED structures using reactive metals as cathodes.

Materials sciencebusiness.industryMechanical Engineering02 engineering and technologyElectroluminescence010402 general chemistry021001 nanoscience & nanotechnology7. Clean energy01 natural sciencesPolymer light emitting diodes0104 chemical scienceslaw.inventionMetalMechanics of MaterialslawElectrònica Materialsvisual_artElectrodevisual_art.visual_art_mediumOptoelectronicsGeneral Materials Science0210 nano-technologybusinessLight-emitting diode
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Perimeter leakage current in polymer light emitting diodes

2009

Observation of leakage current paths through the device perimeter in standard poly(phenylene vinylene)-based light-emitting devices is reported. Perimeter leakage currents govern the diode performance in reverse and low positive bias and exhibit an ohmic character. Current density correlates with the perimeter-to-area ratio thus indicating that leakage currents are mainly confined on polymer regions in the vicinity of metallic contact limits (device perimeter). © 2008 Elsevier B.V. All rights reserved.

chemistry.chemical_classificationMaterials sciencebusiness.industryGeneral Physics and AstronomyPolymerPolymer light emitting diodesLeakage currentsLight emitting diodesPerimeterchemistryPhenyleneMathematics::Metric GeometryOptoelectronicsGeneral Materials SciencebusinessEdge shuntOhmic contactCurrent densityDiodeLeakage (electronics)Current Applied Physics
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