Novel conjugated polymers based on regioregular polyhexylthiophene bearing ionisable end groups

Sviatoslav Hladysh^a, Jiří Vohlídal^b

^aCharles University in Prague, Faculty of Science, Department of Physical and Macromolecular Chemistry, Hlavova 2030/8, Prague , 12843, Czech Republic

^bCharles University in Prague, Faculty of Science, Department of Physical and Macromolecular Chemistry, Hlavova 2030/8, Prague , 12843, Czech Republic

International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics 2015 (HOPV15)

Roma, Italy, 2015 May 11th - 13th

Organizer: Filippo De Angelis

Poster, Sviatoslav Hladysh, 032
Publication date: 5th February 2015

Conjugated polymers (CPs) are common class of materials with a wide variety of applications. In the past three decades, the CPs have been studied as materials for application in light-emmiting diodes (LEDS), light-emitting electrochemical cells (LECs), plastic lasers, solar cells [1], field-effect transistors and sensors. Water/alcohol soluble π-conjugated polymers (polyelectrolytes) can be processed using harmless media and represent interesting materials that exhibit ionic as well as electronic conductivity, which is highly desired in optoelectronic applications. In this contribution novel cationic polythiophene polyelectrolytes with 6-(triethylphosphonium)hexyl and 6-(triphenylphosphinium)hexyl pendant groups and different regioregularity of polythiophene backbone are reported. The precursor polythiophenes with 6-bromohexyl pendant groups were prepared by the grignard metathesis (GRIM) method in order to get the regioregular poly(3-alkylthiophenes)s with well-defined molecular weights and subsequently transformed (modified) to polyelectrolytes in reactions with triethyl- and triphenyl-phosphane, respectively. The polymers prepared are characterized by MNR, Raman and IR spectroscopy and their optical properties as obtained by the UV/vis and luminescence spectroscopy are presented.
The spectroscopic properties of synthesized materials.
[1] Gunes, S.; Neugebauer, H.; Sariciftci, N.S. Conjugated polymer-based organic solar cells. Chemical Reviews 2007, 107, 1324–1338.

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