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    Aggregation quenching of luminescence in electroluminescent conjugated polymers

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    Date
    1999-04-08
    Author
    Jakubiak, Rachel
    Collison, Christopher
    Wan, Wai Chou
    Rothberg, Lewis
    Hsieh, Bing
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    Abstract
    We report measurements of photoluminescence from films of a soluble phenylenevinylene polymer that has prospective importance as the emissive material in light-emitting diodes. We show unambiguously that there is long-lived emission in this material due to excimers and estimate that the quantum yield for excimer formation is as high as 50%. Since excimers in this polymer largely decay nonradiatively at ambient temperature, their prominence serves to drastically reduce the possible efficiency of electroluminescent conjugated polymer devices.
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    http://hdl.handle.net/1850/2257
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