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|Title:||Phenylene-functionalized polythiophene derivatives for light-emitting diodes: Their synthesis, characterization and properties|
|Citation:||Ding, A.-L., Pei, J., Lai, Y.-H., Huang, W. (2001). Phenylene-functionalized polythiophene derivatives for light-emitting diodes: Their synthesis, characterization and properties. Journal of Materials Chemistry 11 (12) : 3082-3086. ScholarBank@NUS Repository. https://doi.org/10.1039/b103717j|
|Abstract:||The design, synthesis and characterization of a new series of conjugated polymers, poly[(3-(4′-n-butylphenyl)thiophene-2,5-diyl)(2,5-dialkoxy-1,4- phenylene)(4-(4′-n-butylphenyl)thiophene-2,5-diyl)] are described in this contribution. Three polymers modified by phenyl groups have been successfully synthesized via FeCl3-oxiditive polymerization. The well-defined structure of the polymers is fully verified by elemental analysis, FT-IR, and 1H and 13C NMR spectroscopy. All polymers show good thermal stability and solubility in common organic solvents. The absolute photoluminescence (PL) efficiencies of the polymers in the neat film can be up to 11%. The electrochemical properties of the polymers indicate that their HOMO and LUMO energy levels can be adjusted by means of the aromatic groups both in the side chain and the backbone structure. Yellowish green electroluminescence is achieved from single-layered polymer light-emitting diodes (PLEDs) with the configuration ITO/polymer/Ca or Al.|
|Source Title:||Journal of Materials Chemistry|
|Appears in Collections:||Staff Publications|
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