Luminescence efficiency and time dependence in a high electron affinity conjugated polymer

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Title: Luminescence efficiency and time dependence in a high electron affinity conjugated polymer
Author: Samuel, I.; Rumbles, G.; Collison, Christopher; Moratti, S.; Holmes, A.; Crystall, B.
Abstract: We report measurements of the efficiency and time dependence of photoluminescence in a high electron affinity cyano-substituted derivative of poly (p-phenylenevinylene). In solution the photoluminescence quantum yield is 0.52 +/- 0.05, and the luminescence lifetime is 0.9 +/- 0.1 ns. In solid films the luminescence quantum yield is 0.35 +/- 0.03 and the luminescence lifetime, of 5.6 +/- 0.2 ns, is much longer. These results strongly suggest that the emission from the film is from an inter-chain excitation, and that inter-molecular interactions are an important factor to consider in the design of highly luminescent conjugated polymers.
Record URI: http://hdl.handle.net/1850/2149
Publishers URL: http://dx.doi.org/10.1016/0379-6779(95)03409-D
Date: 1996-01

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