Study of electropolymerized PEDOT:PSS transducers for application as electrochemical sensors in aqueous media
Electropolymerized poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) onto screen-printed platinum electrodes was tested for stable charge/discharge cycle using cyclic voltammetry (CV) in aqueous media and its adhesion to the electrode surface was also examined. Electropolymerized...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Elsevier BV
2018
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/61508/ http://irep.iium.edu.my/61508/ http://irep.iium.edu.my/61508/ http://irep.iium.edu.my/61508/1/61508_Study%20of%20electropolymerized%20PEDOT_article.pdf http://irep.iium.edu.my/61508/7/61508_Study%20of%20electropolymerized%20PEDOT_SCOPUS.pdf |
| Summary: | Electropolymerized poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) onto screen-printed platinum electrodes was tested for stable charge/discharge cycle using cyclic voltammetry (CV) in aqueous media and its adhesion to the electrode surface was also examined. Electropolymerized PEDOT:PSS maintained most of its initial CV behavior after water-flow test (flow rate = 1 ml/s), whereas drop-cast PEDOT:PSS did not, indicating better adhesion and retention of the polymer's mechanical and electrical properties. Field emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy (EDS) suggest that film structure influence the stability of the redox current measurements. These results prove that careful electropolymerization techniques for synthesizing the PEDOT:PSS transducer are worth pursuing in developing robust electrochemical sensors suitable for continuous use in aqueous media. Developing such transducers is important for developing electrochemical sensors for biomedical and/or environmental monitoring where aqueous flow usually occurs on electrode surfaces. |
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