PEDOT:PSS

Electrochromic switching in two PEDOT:PSS electrodes connected by a piece of PhastGel SDS buffer strips. The electrodes were reversibly and repeatedly oxidized and reduced by switching the polarity of an applied 1 V potential. This was observed by a color change between dark (reduced PEDOT) and light (oxidized PEDOT) blue within the electrodes, demonstrating the transport of ions between and into the electrodes.^[1]

Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) is a polymer mixture of two ionomers. One component in this mixture is made up of polystyrene sulfonate which is a sulfonated polystyrene. Part of the sulfonyl groups are deprotonated and carry a negative charge. The other component poly(3,4-ethylenedioxythiophene) (PEDOT) is a conjugated polymer and carries positive charges and is based on polythiophene. Together the charged macromolecules form a macromolecular salt.^[2]

^ Bengtsson K, Nilsson S, Robinson N (2014). "Conducting Polymer Electrodes for Gel Electrophoresis". PLOS ONE. 9 (2): e89416. Bibcode:2014PLoSO...989416B. doi:10.1371/journal.pone.0089416. PMC 3929695. PMID 24586761.
^ Groenendaal, L.; Jonas, F.; Freitag, D.; Pielartzik, H.; Reynolds, J. R. (2000). "Poly(3,4-ethylenedioxythiophene) and Its Derivatives: Past, Present, and Future". Advanced Materials. 12 (7): 481–494. Bibcode:2000AdM....12..481G. doi:10.1002/(SICI)1521-4095(200004)12:7<481::AID-ADMA481>3.0.CO;2-C.

[1] Bengtsson K, Nilsson S, Robinson N (2014). "Conducting Polymer Electrodes for Gel Electrophoresis". PLOS ONE. 9 (2): e89416. Bibcode:2014PLoSO...989416B. doi:10.1371/journal.pone.0089416. PMC 3929695. PMID 24586761.

[2] Groenendaal, L.; Jonas, F.; Freitag, D.; Pielartzik, H.; Reynolds, J. R. (2000). "Poly(3,4-ethylenedioxythiophene) and Its Derivatives: Past, Present, and Future". Advanced Materials. 12 (7): 481–494. Bibcode:2000AdM....12..481G. doi:10.1002/(SICI)1521-4095(200004)12:7<481::AID-ADMA481>3.0.CO;2-C.

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