PlumX Metrics
Embed PlumX Metrics

X-ray photoelectron spectroscopy study of counterion incorporation in poly(3,4-ethylenedioxythiophene)

Journal of Physical Chemistry C, ISSN: 1932-7447, Vol: 113, Issue: 14, Page: 5585-5592
2009
  • 77
    Citations
  • 0
    Usage
  • 93
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    77
    • Citation Indexes
      77
  • Captures
    93

Article Description

Poly(3,4-ethylenedioxythiophene) (PEDOT) is widely used in organic electronics and biomaterial coatings because of its outstanding electrical properties and chemical stability. In this research, X-ray photoelectron spectroscopy (XPS) was used to investigate incorporation of different counterions during electrochemical polymerization into PEDOT, The counterions probed included both a polyanion, poly(sodium 4-styrene-sulfonate) (PSSNa), and small anions including lithium perchlorate, sodium chloride, and sodium phosphate monobasic monohydrate. In addition to these counterions, an ion mixture, phosphate-buffered saline solution (PBS), was also examined. For such mixtures, the chlorine anion from sodium chloride was found to act as the counterion during PEDOT electrochemical polymerization in PBS solution. This is important because PEDOT is being considered for biomedical applications, which may be prepared in the presence of PBS or other mixtures of ions. Various mixtures of PSSNa, lithium perchlorate, sodium p-toluenesulfonate (TosNa) and PBS counterions were investigated. We detected that the polyanion, PSS , preferentially incorporated into PEDOT in comparison to ClO and Cl anions when ion mixtures were used. Results were supplemented by those obtained via other analytical techniques including electrochemical impedance spectroscopy, cyclic voltammetry, and scanning electron microscopy. © 2009 American Chemical Society.

Bibliographic Details

Sarah A. Spanninga; David C. Martin; Zhan Chen

American Chemical Society (ACS)

Materials Science; Energy; Chemistry

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know