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Morphology and phase segregation of spin-casted films of polyfluorene/PCBM blends
Karlstads universitet, Fakulteten för teknik- och naturvetenskap, Avdelningen för fysik och elektroteknik. (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.
Karlstads universitet, Fakulteten för teknik- och naturvetenskap, Avdelningen för fysik och elektroteknik. Karlstads universitet, Fakulteten för teknik- och naturvetenskap, Materialvetenskap. (Materialfysik)ORCID-id: 0000-0002-1609-8909
2007 (engelsk)Inngår i: Macromolecules, ISSN 0024-9297, E-ISSN 1520-5835, Vol. 40, nr 23, s. 8291-8301Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
ACS, 2007. Vol. 40, nr 23, s. 8291-8301
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URN: urn:nbn:se:kau:diva-15765DOI: 10.1021/ma070712aOAI: oai:DiVA.org:kau-15765DiVA, id: diva2:571784
Forskningsfinansiär
Swedish Research Council, 621-2002-4694Tilgjengelig fra: 2012-11-23 Laget: 2012-11-23 Sist oppdatert: 2017-12-07bibliografisk kontrollert

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