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Song, Hyun-Kon
eclat: ElectroChemistry Lab of Advanced Technology
Research Interests
  • Electrochemical analysis, electroactive materials, electrochemistry-based energy devices

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Redox-active charge carriers of conducting polymers as a tuner of conductivity and its potential window

Cited 3 times inthomson ciCited 2 times inthomson ci
Title
Redox-active charge carriers of conducting polymers as a tuner of conductivity and its potential window
Author
Park, Han-SaemKo, Seo-JinPark, Jeong-SeokKim, Jin YoungSong, Hyun-Kon
Keywords
PORE-SIZE DISTRIBUTION; ELECTRICAL-CONDUCTIVITY; POROUS-ELECTRODES; PSS FILMS; PEDOT; ENHANCEMENT; MORPHOLOGY; SPECTROSCOPY; SULFONATE; SOLVENTS
Issue Date
201308
Publisher
NATURE PUBLISHING GROUP
Citation
SCIENTIFIC REPORTS, v.3, no., pp.1 - 6
Abstract
Electric conductivity of conducting polymers has been steadily enhanced towards a level worthy of being called its alias, "synthetic metal". PEDOT:PSS (poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate)), as a representative conducting polymer, recently reached around 3,000â�...S cm -1, the value to open the possibility to replace transparent conductive oxides. The leading strategy to drive the conductivity increase is solvent annealing in which aqueous solution of PEDOT:PSS is treated with an assistant solvent such as DMSO (dimethyl sulfoxide). In addition to the conductivity enhancement, we found that the potential range in which PEDOT:PSS is conductive is tuned wider into a negative potential direction by the DMSO-annealing. Also, the increase in a redox-active fraction of charge carriers is proposed to be responsible for the enhancement of conductivity in the solvent annealing process.
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DOI
http://dx.doi.org/10.1038/srep02454
ISSN
2045-2322
Appears in Collections:
ECHE_Journal Papers
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