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.
Original language | English |
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Pages (from-to) | 15-18 |
Number of pages | 4 |
Journal | Synthetic Metals |
Volume | 76 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - Jan 1996 |
Keywords
- Electron affinity
- Luminescence
- Poly(p-phenylenevinylene)
- Time dependence
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Polymers and Plastics