Light Emitting Properties of Fluorine-Substituted Poly(1,4-phenylene vinylenes)
| Autor: | Frank E. Karasz, Bin Hu, Paul M. Lahti, Ananda M. Sarker, Ronald M. Gurge |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
chemistry.chemical_classification
Photoluminescence Materials science Polymers and Plastics Organic Chemistry Polymer Electroluminescence Photochemistry Interfacial polymerization Blueshift law.invention Inorganic Chemistry chemistry Phenylene law Polymer chemistry Materials Chemistry Copolymer Light-emitting diode |
| Zdroj: | Macromolecules. 30:8286-8292 |
| ISSN: | 1520-5835 0024-9297 |
| Popis: | Three fluorine-containing polymers, poly(2-fluoro-1,4-phenylene vinylene), poly(2,5-difluoro-1,4-phenylene vinylene), and poly(2[5]-(n-hexyloxy)-5[2]-fluoro-1,4-phenylene vinylene) (1−3, respectively) have been synthesized by the soluble precursor method and were used to fabricate light emitting diode (LED) devices. Monosubstituted 1 yielded an electroluminescent emission peaking at 560 nm (green-yellow); polymers 2 and 3 emitted in the 600−610 nm region (red). The result for 1 represents a blue shift in emission relative to emission from hompolymeric unsubstituted poly(1,4-phenylene vinylene) (PPV) LEDs fabricated by similar techniques, while the results for 2 and 3 represent a substantial red shift. These results may be compared to those obtained from LEDs fabricated from copolymers of PPV and poly(2,3,5,6-tetrafluoro-1,4-phenylene vinylene), which show a slightly blue shifted emission relative to homopolymeric PPV (Benjamin, I.; Faraggi, E. Z.; Avny, Y.; Davidov, D.; Neumann, R. Chem. Mater. 1996, 8, 3... |
| Databáze: | OpenAIRE |
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