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Microscopy Techniques Image Organic LED Bubble Formation

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Scientists from the Institute of Materials Research and Engineering in Singapore have examined the formation of dark spots in organic LEDs caused by dome-shaped bubbles at the interface between an emissive and nonemissive diode layer. Using the combination of a Nikon E600 light microscope, a time-of-flight secondary ion mass spectrometry instrument and a Jeol JSM-6700F scanning electron microscope, they observed that the bubbles are the result of electrode roughness, local current concentration and heating that leads to material degradation. In a description published in the Jan.14 issue...Read full article

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    Published: May 2002
    MicroscopyResearch & TechnologyspectroscopyTech Pulse

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