Multilayer formation in spin-coated thin films of low-bandgap polyfluorene: PCBM blends

Cecilia M. Bjoerstroem; Andrzej Bernasik; Jakub Rysz; Andrzej Budkowski; Svante Nilsson; Mattias Svensson; Mats Andersson; Kjell O. Magnusson; Ellen Moons

Multilayer formation in spin-coated thin films of low-bandgap polyfluorene: PCBM blends
Journal article, 2005

Blends of the low-bandgap polymer poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-5,5-(4',7'-di-2-thienyl- 2',1',3'-benzothiadiazole)] (APFO-3) and the fullerene deriv. [6,6]-phenyl-C61-butyric acid Me ester (PCBM) were spin-coated from chloroform soln. into thin films, which were examd. with dynamic secondary ion mass spectrometry. For blends with high PCBM content, the depth profiles show compn. waves that were caused by surface-directed phase sepn. during spin-coating. The formation of such multilayer structures by spontaneous self-stratification probably has implications for optimization strategies for the performance of org. solar cells. [on SciFinder (R)]

Heterojunction solar cells (active layers for

multilayer formation in spin-coated thin films of low-bandgap polyfluorene- PCBM blends)

Glass substrates (ITO-coated

Surface energy (calcd. from contact angles

multilayer formation in spin-coated thin films of low-bandgap polyfluorene- PCBM blends)

multilayer formation in spin-coated thin films of low-bandgap

Author

Cecilia M. Bjoerstroem

Andrzej Bernasik

Jakub Rysz

Andrzej Budkowski

Svante Nilsson

Mattias Svensson

Mats Andersson

Chalmers, Chemical and Biological Engineering, Polymer Technology

Other publications Research

Kjell O. Magnusson

Ellen Moons

Journal of Physics: Condensed Matter

Vol. 17 50 L529-L534

Subject Categories

Polymer Chemistry

Condensed Matter Physics

More information

Created

10/6/2017

Multilayer formation in spin-coated thin films of low-bandgap polyfluorene: PCBM blends Journal article, 2005