Plasma Chemistry and Plasma Processing

, Volume 36, Issue 1, pp 295–307

Atmospheric-Pressure Plasma Reduction of Metal Cation-Containing Polymer Films to Produce Electrically Conductive Nanocomposites by an Electrodiffusion Mechanism

  • S. Ghosh
  • E. Ostrowski
  • R. Yang
  • D. Debnath
  • P. X.-L. Feng
  • C. A. Zorman
  • R. M. Sankaran
Original Paper

DOI: 10.1007/s11090-015-9665-2

Cite this article as:
Ghosh, S., Ostrowski, E., Yang, R. et al. Plasma Chem Plasma Process (2016) 36: 295. doi:10.1007/s11090-015-9665-2

Abstract

We describe an atmospheric-pressure plasma process for the reduction of metal cation-containing polymer films to form electrically conductive patterns. Thin films of poly(acrylic) acid (PAA) containing silver ions (Ag+) were prepared by mixing the polymer with silver nitrate (AgNO3) in solution to produce a cross-linked precipitate, homogenizing, and depositing onto a substrate by doctor’s blade. Exposing the Ag–PAA films to a scanning microplasma resulted in reduction of the bulk dispersed Ag+ in a desired pattern at the film surface. The processed films were characterized by scanning electron microscopy, energy dispersive spectroscopy, thermogravimetric analysis, and current–voltage measurements. The resistances of the patterned features were found to depend on the thickness of the films, the microplasma scan rate, residual solvent in the film, and electric field created between the microplasma and the substrate. Together these results show that the formation of conductive features occurs via an electrodiffusion process where Ag+ diffuses from the film bulk to the surface to be reduced by the microplasma.

Keywords

Microplasma Metal chelation Electrodiffusion Metal reduction 

Supplementary material

11090_2015_9665_MOESM1_ESM.pdf (138 kb)
Supplementary material 1 (PDF 138 kb)

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • S. Ghosh
    • 1
  • E. Ostrowski
    • 1
  • R. Yang
    • 2
  • D. Debnath
    • 3
  • P. X.-L. Feng
    • 2
  • C. A. Zorman
    • 2
  • R. M. Sankaran
    • 1
  1. 1.Department of Chemical and Biomolecular EngineeringCase Western Reserve UniversityClevelandUSA
  2. 2.Department of Electrical Engineering and Computer ScienceCase Western Reserve UniversityClevelandUSA
  3. 3.Department of Polymer ScienceUniversity of AkronAkronUSA

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