Novel fluorene - thiophene copolymers synthesis, photophysical and electrochemical properties

0310156 - ÚMCH 2008 RIV DE eng J - Journal Article
Pavlačková, Petra - Cimrová, Věra - Výprachtický, Drahomír - Kmínek, Ivan
Novel fluorene - thiophene copolymers synthesis, photophysical and electrochemical properties.
[Nové kopolymery fluorenu a thiofenu: syntéza, fotofyzikální a elektrochemické vlastnosti.]
Macromolecular Symposia. Roč. 268, č. 1 (2008), s. 105-109. ISSN 1022-1360.
[Microsymposium on Advanced Polymer Materials for Photonics and Electronics /47./. Prague, 15.07.2007-19.07.2007]
R&D Projects: GA AV ČR IAA4050409; GA MŠMT(CZ) 1M06031
Institutional research plan: CEZ:AV0Z40500505
Keywords : conjugated polymers * electrochemical properties * fluorene-thiophene copolymers * photoluminescence * thin films
Subject RIV: BM - Solid Matter Physics ; Magnetism

Novel alternating fluorene - thiophene copolymers, F3HT, FIPT, and FPyT, consisting of 9,9-dihexylfluorene and 3-substituted (with hexyl, 3-methylbutyl and 2-(pyren-1-yl)vinyl, respectively) thiophene units were synthesized. Photoluminescence(PL) and electrochemical behavior of these polymers were studied. Thin films of F3HT and FIPT showed an intense green PL emission whereas the PL emission of FPyT thin films was orange. The PL emission spectra in thin films differ from those measured in THF solutions indicating that aggregate formation played an important role in the solid state.

Byly syntetizovány nové kopolymery (F3HT, FIPT a FPyT) sestávající se z 9,9-dihexylfluorenu a substituovaného thiofenu v poloze 3 (hexylem, 3-methylbutylem a 2-(pyren-1-yl)vinylem) a byly studovány jejich fotoluminiscenční a elektrochemické vlastnosti. Tenké vrstvy polymerů F3HT a FIPT vykazují intenzivní zelenou fotoluminiscenci zatímco vrstvy FPyT oranžovou. Rozdíly ve fotoluminiscenčních spektrech roztoků a tenkých vrstev ukazují na formování agregátů v pevné fázi.
Permanent Link: http://hdl.handle.net/11104/0162100