Tuning of PEDOT:PSS Properties Through Covalent Surface Modification |
| |
| Authors: | Olga A. Guselnikova Pavel S. Postnikov Premysl Fitl David Tomecek Petr Sajdl Roman Elashnikov Zdenka Kolska Mohamed M. Chehimi Vaclav Švorčík Oleksiy Lyutakov |
| |
| Affiliation: | 1. Department of Solid State Engineering, University of Chemistry and Technology, Prague, Czech Republic;2. Department of Technology of Organic Substances and Polymer Materials, Tomsk Polytechnic University, Tomsk, Russia;3. Department of Physics and Measurements, University of Chemistry and Technology, Prague, Czech Republic;4. Department of Power Engineering, University of Chemistry and Technology, Prague, Czech Republic;5. Faculty and Science, J. E. Purkinje University in Usti nad Labem, Usti nad Labem, Czech Republic;6. Université Paris Est, Institut de Chimie et des Matériaux Paris‐Est (ICMPE) (UMR7182), CNRS, UPEC, Thiais, France |
| |
| Abstract: | Conductive polymer (poly(3,4‐ethylenedioxythiophene)‐poly(styrenesulfonate) (PEDOT:PSS) is an attractive platform for the design of flexible electronic, optoelectronic, and (bio)sensor devices. Practical application of PEDOT:PSS often requires an incorporation of specific molecules or moieties for tailoring of its physical–chemical properties. In this article, a method for covalent modification of PEDOT:PSS using arenediazonium tosylates was proposed. The procedure includes two steps: chemisorption of diazo‐cations on the PEDOT:PSS surface followed by thermal decomposition of the diazonium salt and the covalent bond formation. Structural and surface properties of the samples were evaluated by XPS, SEM‐EDX, AFM, goniometry, and a range of electric and optical measurements. The developed modification procedure enables tuning of the PEDOT:PSS surface properties such as conductivity and optical absorption. The possibility to introduce various organic functional groups (from hydrophilic to hydrophobic) and to create new groups for further functionalization makes the developed procedure multipurpose. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2017 , 55, 378–387 |
| |
| Keywords: | conducting polymers conductive polymers diazonium chemistry functionalization of polymers PEDOT PSS surface modification thin films |
|
|
