Raman microspectroscopy of thienothiadiazole-fluorene copolymer and its blends with fullerene

0428177 - ÚMCH 2015 RIV DE eng C - Conference Paper (international conference)
Morávková, Zuzana - Pokorná, Veronika - Výprachtický, Drahomír - Kmínek, Ivan - Cimrová, Věra
Raman microspectroscopy of thienothiadiazole-fluorene copolymer and its blends with fullerene.
Macromolecular Symposia. Weinheim: Wiley, 2014, Roč. 339, č. 1, s. 141-146. ISSN 1022-1360.
[European Symposium on Polymer Spectroscopy /19./ - ESOPS19. Prague Meeting on Macromolecules /77./. Prague (CZ), 07.07.2013-11.07.2013]
R&D Projects: GA ČR(CZ) GA13-26542S; GA ČR GAP106/12/0827
Institutional support: RVO:61389013
Keywords : bulk heterojunction * conjugated polymers * low-band gap
Subject RIV: CD - Macromolecular Chemistry

Thin films made of a low-band gap copolymer poly{4,6-bis(3-dodecylthien-2-yl)thieno[3,4-c][1,2,5]thiadiazole-alt-9,9-bis(2-ethylhexyl)-fluorene} (CDTF) and made of its blends with soluble fullerene derivative [6,6]-phenyl C61-butyric acid methyl ester (PCBM60) with various ratios were studied by means of UV–vis absorption spectroscopy and Raman microspectroscopy. It was found that inhomogeneities which are present in thin films consist of higher content of PCBM60 than the rest of the film. Photoluminescence of both components observed in the Raman spectra was distinguished using two different excitation wavelengths.
Permanent Link: http://hdl.handle.net/11104/0236991