Aggregation quenching of luminescence in electroluminescent conjugated polymers

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Title: Aggregation quenching of luminescence in electroluminescent conjugated polymers
Author: Jakubiak, Rachel; Collison, Christopher; Wan, Wai Chou; Rothberg, Lewis; Hsieh, Bing
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.
Record URI: http://hdl.handle.net/1850/2257
Publishers URL: http://dx.doi.org/10.1021/jp9839450
Date: 1999-04-08

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