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Synthesis of soluble phenyl-substituted poly(p-phenylenevinylenes) with a low content of structural defects
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics .
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2002 (English)In: Macromolecules, ISSN 0024-9297, E-ISSN 1520-5835, Vol. 35, no 13, 4997-5003 p.Article in journal (Refereed) Published
Abstract [en]

The synthesis and characterization of two new soluble poly(p-phenylenevinylenes) (PPVs) are reported. The polymers are poly(2-2',5'-bis(octyloxy)benzene)-1,4-phenylenevinylene) (BOP-PPV) and poly(2-(2',5'-bis(octyloxy)benzene)-5-methoxy-1,4-phenylenevinylene) (BOPM-PPV). Both polymers have been polymerized at high and low temperatures to study the formation of structural defects. It is shown that both methoxy groups as side chains and low polymerization temperatures decrease the content of defects in the final polymer. As a consequence, the polymers with lower concentration of defects exhibit higher electroluminescence yields in light-emitting diodes. In addition to this, the polymers with a low content of defects exhibited longer operational lifetimes in these devices. The highest photoluminescence quantum yield in the solid state and electroluminescence efficiency were found to be 72% and 1.74%, respectively.

Place, publisher, year, edition, pages
2002. Vol. 35, no 13, 4997-5003 p.
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Engineering and Technology
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URN: urn:nbn:se:liu:diva-47880DOI: 10.1021/ma011768mOAI: oai:DiVA.org:liu-47880DiVA: diva2:268776
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Johansson, TomasInganäs, Olle

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The Institute of TechnologyDepartment of Physics, Chemistry and BiologyBiomolecular and Organic Electronics
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