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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 R. Andersson (Institutionen för kemi- och bioteknik, Polymerteknologi) ; Kjell O. Magnusson ; Ellen Moons
Journal of Physics: Condensed Matter Vol. 17 (2005), 50, p. L529-L534.
[Artikel, refereegranskad vetenskaplig]

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)]

Nyckelord: Glass substrates (ITO-coated, multilayer formation in spin-coated thin films of low-bandgap polyfluorene- PCBM blends), Heterojunction solar cells (active layers for, multilayer formation in spin-coated thin films of low-bandgap polyfluorene- PCBM blends), Surface energy (calcd. from contact angles, multilayer formation in spin-coated thin films of low-bandgap



Denna post skapades 2007-01-12.
CPL Pubid: 25401

 

Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Polymerteknologi (2005-2014)

Ämnesområden

Makromolekylfysik
Polymerkemi

Chalmers infrastruktur