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Journal articles
High-Temperature Rubbing: A Versatile Method to Align π-Conjugated Polymers without Alignment Substrate
L. Biniek
1
Stephanie Pouget
2
David Djurado
2
E. Gonthier
1
Kim Tremel
3
N. Kayunkid
1
E. Zaborova
4
N. Crespo-Monteiro
5
Olivier Boyron
6
Nicolas Leclerc
4
Sabine Ludwigs
3, 7, 8, 9
Martin Brinkmann
1
L. Biniek 1
Author IdHAL : laure-biniek ORCID : https://orcid.org/0000-0002-7643-3713
Stephanie Pouget 2
Author IdHAL : stephanie-pouget ORCID : https://orcid.org/0000-0002-0057-7382
David Djurado 2
Author
E. Gonthier 1
Author
Olivier Boyron 6
Author IdHAL : olivier-boyron ResearcherId : http://www.researcherid.com/rid/J-6437-2015 ORCID : https://orcid.org/0000-0002-0386-5814
Nicolas Leclerc 4
Author
Sabine Ludwigs 3, 7, 8, 9
Author
Martin Brinkmann 1
Author IdHAL : martin-brinkmann ORCID : https://orcid.org/0000-0002-2680-1506
1
ICS - Institut Charles Sadron (23 rue du Loess, BP 84047, 67034 STRASBOURG Cedex 2 - France)
- UNISTRA - Université de Strasbourg (4 rue Blaise Pascal - CS 90032 - 67081 Strasbourg cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UPR22 (France)
- Matériaux et nanosciences d'Alsace (France)
- CNRS - Centre National de la Recherche Scientifique (France)
- INSERM - Institut National de la Santé et de la Recherche Médicale (101, rue de Tolbiac, 75013 Paris - France)
- Université de Haute-Alsace (UHA) - Université de Haute-Alsace (UHA) Mulhouse - Colmar (2, rue des Frères Lumière F-68093 Mulhouse Cedex - France)
- UNISTRA - Université de Strasbourg : FR3627 (4 rue Blaise Pascal - CS 90032 - 67081 Strasbourg cedex - France)
- Réseau nanophotonique et optique (France)
- CNRS - Centre National de la Recherche Scientifique (France)
- UNISTRA - Université de Strasbourg : FR3678 (4 rue Blaise Pascal - CS 90032 - 67081 Strasbourg cedex - France)
- Université de Haute-Alsace (UHA) - Université de Haute-Alsace (UHA) Mulhouse - Colmar (2, rue des Frères Lumière F-68093 Mulhouse Cedex - France)
2
SP2M - UMR 9002 - Service de Physique des Matériaux et Microstructures (SP2M - UMR 9002, Institut Nanosciences et Cryogénie, CEA/Grenoble, 17, Avenue des Martyrs 38042 Grenoble Cedex 9 - France)
- INAC - Institut Nanosciences et Cryogénie (CEA-Grenoble, 17 rue des Martyrs, F-38054 Grenoble cedex 9 - France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/INAC (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- UGA [2016-2019] - Université Grenoble Alpes [2016-2019] : INAC (CS 40700 - 38058 Grenoble cedex - France)
3
Univ Stuttgart, Inst Polymerchem (D-70569 Stuttgart - Germany)
- Universität Stuttgart [Stuttgart] (Keplerstraße 7, 70174 Stuttgart - Germany)
5
LHC - Laboratoire Hubert Curien [Saint Etienne] (18 rue du Professeur Lauras 42000 SAINT-ETIENNE - France)
- IOGS - Institut d'Optique Graduate School (2 avenue Augustin Fresnel, 91127 Palaiseau Cedex - France)
- UJM - Université Jean Monnet [Saint-Étienne] (10 rue Tréfilerie - 42100 Saint-Étienne - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5516 (France)
6
C2P2 - Laboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 (43, Bd. du 11 Novembre 1918, Villeurbanne F-69616, - France)
- UCBL - Université Claude Bernard Lyon 1 (43, boulevard du 11 novembre 1918, 69622 Villeurbanne cedex - France)
- Université de Lyon (92 rue Pasteur - CS 30122, 69361 Lyon Cedex 07 - France)
- CPE - École supérieure de Chimie Physique Electronique de Lyon (Domaine Scientifique de la Doua Bâtiment Hubert Curien 43 Boulevard du 11 Novembre 1918 69616 Villeurbanne - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5265 (France)
7
Freiburger Materialforschungszentrum (D-79104 Freiburg - Germany)
- Albert-Ludwigs-Universität Freiburg (Georges-Köhler Allee 51 79110 Freiburg im Breisgau (Germany) - Germany)
Abstract : Mechanical rubbing of polymer films has been widely used in the liquid crystal display industry to prepare oriented alignment layers of polyimides. We show that this fast orientation method can be successfully applied to a large palette of different π-conjugated systems, i.e., p- and n-type semiconducting homopolymers and alternating copolymers. Transmission electron microscopy, grazing incidence X-ray diffraction and UV-vis absorption spectroscopy reveal that both, the temperature of the films during rubbing and the molecular weight of the polymer strongly influence the level of orientation. For polythiophenes and polyfluorenes, the dependence of the orientational order parameter on the rubbing temperature (Trub) was determined. A strong increase of alignment with Trub is explained by the progressive alignment of higher molecular weight fractions at higher Trub. The disordering of alkyl side chains allows the hairy-rod shaped macromolecules to disentangle and align during rubbing. In addition, for certain conjugated polymers, the in-plane orientation, crystallinity, and polymorphism of the rubbed films can be substantially improved/modified by postdeposition thermal or solvent vapor annealing. This high level of orientation results in highly anisotropic optical and electronic properties (UV-vis absorption, fluorescence, charge transport).
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https://hal-ujm.archives-ouvertes.fr/ujm-01005458
Contributor : Nicolas Crespo-Monteiro <>
Submitted on : Thursday, June 12, 2014 - 4:26:51 PM
Last modification on : Friday, July 10, 2020 - 7:58:34 AM
Contributor : Nicolas Crespo-Monteiro <>
Submitted on : Thursday, June 12, 2014 - 4:26:51 PM
Last modification on : Friday, July 10, 2020 - 7:58:34 AM
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- HAL Id : ujm-01005458, version 1
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Citation
L. Biniek, Stephanie Pouget, David Djurado, E. Gonthier, Kim Tremel, et al.. High-Temperature Rubbing: A Versatile Method to Align π-Conjugated Polymers without Alignment Substrate. Macromolecules, American Chemical Society, 2014, pp 3871-3879. ⟨ujm-01005458⟩
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