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Improved photoluminescence efficiency of films from conjugated polymers
Chalmers Tekniska Högskola.
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-5154-0291
Chalmers Tekniska Högskola.
Chalmers Tekniska Högskola.
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1997 (English)In: Synthetic metals, ISSN 0379-6779, E-ISSN 1879-3290, Vol. 85, no 1-3, 1383-1384 p.Article in journal (Refereed) Published
Abstract [en]

We have demonstrated two general ways to increase the photoluminescence efficiency of films from conjugated polymers. One is to disperse the conjugated polymer on a molecular level by using attractive forces between the conjugated polymer and the matrix. The other method is to substitute the conjugated polymer with side chains which separates the conjugated backbones. Using this idea a new poly(thiophene) with a photoluminescence efficiency of 16% in films has been prepared. LEDs from this polymer exhibit an external efficiency of 0.1% for single layer and 0.7% for double layer diodes.

Place, publisher, year, edition, pages
Elsevier , 1997. Vol. 85, no 1-3, 1383-1384 p.
Keyword [en]
light sources; polythiophene and derivatives; photoluminescence; UV-Vis-NIR absorption; nuclear magnetic resonance spectroscopy; solution processing
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-74923DOI: 10.1016/S0379-6779(97)80283-4ISI: A1997WX70800154OAI: oai:DiVA.org:liu-74923DiVA: diva2:497294
Available from: 2012-02-10 Created: 2012-02-10 Last updated: 2017-12-07

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Berggren, MagnusInganäs, Olle

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