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Luminescent behavior of soluble poly(para-phenylene vinylene) copolymers

✍ Scribed by B.J. Sun; Y.-J. Miao; G.C. Bazan; E.M. Conwell


Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
415 KB
Volume
260
Category
Article
ISSN
0009-2614

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✦ Synopsis


Soluble diblocks with well-defined lengths of poly(phenylene vinylene), PPV, and an inert polymer, polynorbornene, PNBE, have been made by a new type of synthesis. For dilute solutions and relatively short lengths of PPV the quantum efficiency of luminescence is over 70% and the radiative lifetimes are 3 ns. We find that with increasing concentration of PPV in solution the luminescence efficiency decreases, which we propose is due to formation of polaron pairs.


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