Modified physico-chemical properties and supercapacitive performance via DMSO inducement to PEDOT:PSS active layer

Seung Hwan Lee, Ji Soo Sohn, Sachin B. Kulkarni, Umakant M. Patil, Seong Chan Jun, Jung Hyun Kim

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) was treated with dimethyl sulfoxide (DMSO) in order to modify it physico-chemical properties in an effort to improve its electrochemical performance. In this study, the conductivity of PEDOT:PSS was controlled through post-solvent treatment in DMSO for various dipping times. The maximum conductivity of the DMSO-treated PEDOT:PSS electrode was ∼1890 S cm-1. The electrical conductivity, PEDOT to PSS ratio, chemical compositions, wettability, and surface roughness are correlated and suitably explained. The supercapacitive performance of the DMSO-treated PEDOT:PSS electrodes was studied in 1 M H2SO4 within an optimized potential window of 0 to -0.6 V versus Ag/AgCl. The maximum specific capacitance of the PEDOT:PSS electrode treated in DMSO for 60 min was found to be ∼153 F g-1 at a 1 mA cm-2 discharge current density (∼145 F g-1 at a 10 mV s-1 scan rate), along with an energy density of 93 W h kg-1 and a power density of 4.6 kW kg-1.

Original languageEnglish
Pages (from-to)3423-3430
Number of pages8
JournalOrganic Electronics
Volume15
Issue number12
DOIs
Publication statusPublished - 2014 Dec

Fingerprint

Styrene
Dimethyl sulfoxide
Dimethyl Sulfoxide
sulfonates
chemical properties
Chemical properties
polystyrene
Electrodes
electrodes
roughness
conductivity
wettability
dipping
Wetting
radiant flux density
surface roughness
chemical composition
Capacitance
Current density
flux density

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

Lee, Seung Hwan ; Sohn, Ji Soo ; Kulkarni, Sachin B. ; Patil, Umakant M. ; Jun, Seong Chan ; Kim, Jung Hyun. / Modified physico-chemical properties and supercapacitive performance via DMSO inducement to PEDOT:PSS active layer. In: Organic Electronics. 2014 ; Vol. 15, No. 12. pp. 3423-3430.
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Modified physico-chemical properties and supercapacitive performance via DMSO inducement to PEDOT:PSS active layer. / Lee, Seung Hwan; Sohn, Ji Soo; Kulkarni, Sachin B.; Patil, Umakant M.; Jun, Seong Chan; Kim, Jung Hyun.

In: Organic Electronics, Vol. 15, No. 12, 12.2014, p. 3423-3430.

Research output: Contribution to journalArticle

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