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Morphology and phase segregation of spin-casted films of polyfluorene/PCBM blends
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering. (Materialfysik)
Faculty of Physics and Applied Computer Science, AGH-University of Science and Technology, Al. Mickiewicza 30, Krakow 30–059, Poland.
M. Smoluchowski Insitute of Physics, Jagiellonian University, Reymonta 4, Krakow 30–059, Poland.
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science. (Materialfysik)
2007 (English)In: Macromolecules, ISSN 0024-9297, E-ISSN 1520-5835, Vol. 40, no 23, 8291-8301 p.Article in journal (Refereed) Published
Abstract [en]

In this study the morphology of spin-casted films of polymers blended with [6,6]-phenyl C61-butyric acid methyl ester (PCBM) has been studied. It was found that the lateral structure formation in the films is favored by rapid solvent evaporation and strong polymer−PCBM repulsion. The formation of homogeneous films is favored by slow evaporation and weak polymer−PCBM repulsion. The effect of solvent evaporation rate is the opposite of what is found for spin-casting polymer−polymer blends. The results can be explained by the kinetics of phase separation and the phase behavior involving limited solubility and crystallization of PCBM.

Place, publisher, year, edition, pages
ACS, 2007. Vol. 40, no 23, 8291-8301 p.
National Category
Condensed Matter Physics Physical Chemistry
Research subject
Physics
Identifiers
URN: urn:nbn:se:kau:diva-15765DOI: 10.1021/ma070712aOAI: oai:DiVA.org:kau-15765DiVA: diva2:571784
Funder
Swedish Research Council, 621-2002-4694
Available from: 2012-11-23 Created: 2012-11-23 Last updated: 2013-07-10Bibliographically approved

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Publisher's full texthttp://pubs.acs.org/doi/abs/10.1021/ma070712a

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