An Alternative Anionic Polyelectrolyte for Aqueous PEDOT Dispersions: Towards Printable Transparent Electrodes

An Alternative Anionic Polyelectrolyte for Aqueous PEDOT Dispersions: Towards Printable Transparent Electrodes

Organic conducting polymers are promising electrode materials for printable organic electronics. One of the most studied conducting polymers is PEDOT:PSS which is sufficiently conductive and transparent, but which shows some drawbacks, such as hygroscopy and acidity. In this communication we present...

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Veröffentlicht in:Angewandte Chemie International Edition 2015-07, Vol.54 (29), p.8506-8510
Hauptverfasser: Hofmann, Anna, Smaal, Wiljan T T, Mumtaz, Muhammad, Katsigiannopoulos, Dimitrios, Brochon, Cyril, Schütze, Falk, Hild, Olaf R, Cloutet, Eric, Hadziioannou, Georges
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container_end_page 8510
container_issue 29
container_start_page 8506
container_title Angewandte Chemie International Edition
container_volume 54
creator Hofmann, Anna
Smaal, Wiljan T T
Mumtaz, Muhammad
Katsigiannopoulos, Dimitrios
Brochon, Cyril
Schütze, Falk
Hild, Olaf R
Cloutet, Eric
Hadziioannou, Georges
description Organic conducting polymers are promising electrode materials for printable organic electronics. One of the most studied conducting polymers is PEDOT:PSS which is sufficiently conductive and transparent, but which shows some drawbacks, such as hygroscopy and acidity. In this communication we present a new approach to stabilize PEDOT in aqueous dispersions by replacing the PSS with a new basic polyanion based on a polystyrene backbone with (trifluoromethylsulfonyl)imide (TSFI) side groups. The PEDOT:PSTFSIK dispersions were obtained by oxidative polymerization of EDOT in aqueous PSTFSIK solution and were characterized regarding their composition, morphology, doping, rheological behavior and opto-electronic performance. These PEDOT:PSTFSIK dispersions show excellent printability and good opto-electronic performance (238Ohm.sq-1 at 91% transmittance, >260S.cm-1) and were successfully integrated as flexible electrodes in OLED and OPV devices.
doi_str_mv 10.1002/anie.201503024
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title An Alternative Anionic Polyelectrolyte for Aqueous PEDOT Dispersions: Towards Printable Transparent Electrodes
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