Formation of nanoislands on conducting poly(3,4-ethylenedioxythiophene) films by high-energy-ion irradiation: Applications as field emitters and capacitor electrodes

Jinsoo Joo, Soung Kyu Park, Duk Soo Seo, Sun Jeong Lee, Hae Soo Kim, Kwang Sun Ryu, Tae Jae Lee, Sung Ho Seo, Cheol Jin Lee

Research output: Contribution to journalArticle

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Abstract

Nanoislands have been fabricated on the surface of conducting poly(3,4-ethylenedioxythiophene) (PEDOT) films doped with poly(4- styrenesuifonate) (PSS) using high-energy (≈= 1-3 MeV) Cl2+ ion irradiation. Scanning electron microscopy and atomic force microscopy confirm the direct formation of nanoislands with diameters ranging from 50 to 300 nm and heights ranging from 40 to 120 nm. From our analysis, we propose that the formation of nanoislands might be due to micelle formation of the polymeric stabilizer poly(sodium 4-styrenesulfonate) (PSS-Na) surrounding the nuclei in the PEDOT/PSS via the high-energyion irradiation. We observe similar results for high-energy-ion irradiated polyaniline doped with PSS-Na. On using the nanoislands as nanotip emitters of a field-emission display, an increase in the current density of about five orders of magnitude is observed. Cyclic voltammetry of the PEDOT/PSS electrode with the nanoislands as the electrode shows enhanced capacitance compared with that of the PEDOT/PSS film that contains no nanostructure.

Original languageEnglish
Pages (from-to)1465-1470
Number of pages6
JournalAdvanced Functional Materials
Volume15
Issue number9
DOIs
Publication statusPublished - 2005 Sep 1

Fingerprint

Ion bombardment
ion irradiation
capacitors
emitters
Capacitors
Nanotips
Field emission displays
conduction
Electrodes
electrodes
Polyaniline
Micelles
Cyclic voltammetry
Atomic force microscopy
Nanostructures
Current density
Capacitance
Sodium
Irradiation
Scanning electron microscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Formation of nanoislands on conducting poly(3,4-ethylenedioxythiophene) films by high-energy-ion irradiation : Applications as field emitters and capacitor electrodes. / Joo, Jinsoo; Park, Soung Kyu; Seo, Duk Soo; Lee, Sun Jeong; Kim, Hae Soo; Ryu, Kwang Sun; Lee, Tae Jae; Seo, Sung Ho; Lee, Cheol Jin.

In: Advanced Functional Materials, Vol. 15, No. 9, 01.09.2005, p. 1465-1470.

Research output: Contribution to journalArticle

Joo, Jinsoo ; Park, Soung Kyu ; Seo, Duk Soo ; Lee, Sun Jeong ; Kim, Hae Soo ; Ryu, Kwang Sun ; Lee, Tae Jae ; Seo, Sung Ho ; Lee, Cheol Jin. / Formation of nanoislands on conducting poly(3,4-ethylenedioxythiophene) films by high-energy-ion irradiation : Applications as field emitters and capacitor electrodes. In: Advanced Functional Materials. 2005 ; Vol. 15, No. 9. pp. 1465-1470.
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