Synthesis of Polypyrrole-Coated Core/Shell Nanoparticles

Authors

  • Andreas Mühlebach Ciba Inc. (now part of BASF), Performance Chemicals Research, Klybeckstrasse 141, CH-4002 Basel;, Email: andreas.muehlebach@ciba.com
  • Andreas Hafner Ciba Inc. (now part of BASF), Performance Chemicals Research, Klybeckstrasse 141, CH-4002 Basel;, Email: andreas.hafner@ciba.com
  • François Rime Ciba Inc. (now part of BASF), Performance Chemicals Research, Klybeckstrasse 141, CH-4002 Basel
  • Konstantinos Mpoukouvalas Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
  • Ling Sun Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
  • Jianjun Wang Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
  • Gerhard Wegner Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
  • Tilman Beierlein CSEM – Centre Suisse d'Electronique et, de Microtechnique SA, Mattenstrasse 22, CH-4058 Basel

DOI:

https://doi.org/10.2533/chimia.2010.49

Keywords:

Conductive polymers, Core/shell nanoparticles, Organic electronics, Polypyrrole, Spherical polyelectrolyte brush

Abstract

The synthesis, physical characterization and scale-up of conductive, re-dispersible core/shell nanoparticles containing polypyrrole (PPy) in the shell are described. The compressed powders/films show a DC conductivity which is considerably higher than that of commercial standard products based on PEDOT/PSS ('AL 4083' from H.C. Starck). The particles have excellent film-forming properties since thin films (50–100 nm) made by spin-coating from aqueous dispersions of the particles have an AFM film roughness of <15 nm even before annealing. The materials were tested as hole injection/smoothening layers in fluorescent OLED devices, and are in a comparable range to PEDOT/PSS-based materials in respect to performance (film forming, luminance, efficiency, and lifetime).

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Published

2010-02-26

How to Cite

[1]
A. Mühlebach, A. Hafner, F. Rime, K. Mpoukouvalas, L. Sun, J. Wang, G. Wegner, T. Beierlein, Chimia 2010, 64, 49, DOI: 10.2533/chimia.2010.49.