Effect of silica nanoparticle content on the structure and electrostatic bonding of PEDOT:PSS

Seok Joo Wang, Yong June Choi, Su Cheol Gong, Yong Hoon Kim, Hyung-Ho Park

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Conducting poly(3,4-ethylenedioxythiophene):poly(styrene-4-sulfonate) (PEDOT:PSS) containing hydroxyl surface rich SiO 2 nanoparticles were investigated. Rearrangement and bonding of PEDOT:PSS were affected by the content of SiO 2 nanoparticles, which resulted in the modification of an electronic band structure and electrical characteristics. A slight decrease in work function and a shift of the highly occupied molecular orbital edge to the Fermi level were induced by SiO 2 nanoparticle addition. The current path was also tuned by SiO 2 nanoparticles and resistance of the composite film was diminished. SiO 2 nanoparticles affect electrostatic bonding between PEDOT:PSS and doping of PEDOT as well as increase the packing density of PEDOT:PSS.

Original languageEnglish
Pages (from-to)179-185
Number of pages7
JournalMolecular Crystals and Liquid Crystals
Volume568
Issue number1
DOIs
Publication statusPublished - 2012 Dec 3

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electrostatic bonding
Styrene
sulfonates
Silicon Dioxide
Electrostatics
polystyrene
Silica
Nanoparticles
silicon dioxide
nanoparticles
packing density
Composite films
Molecular orbitals
Fermi level
Hydroxyl Radical
Band structure
molecular orbitals
Doping (additives)
poly(3,4-ethylene dioxythiophene)
conduction

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Wang, Seok Joo ; Choi, Yong June ; Gong, Su Cheol ; Kim, Yong Hoon ; Park, Hyung-Ho. / Effect of silica nanoparticle content on the structure and electrostatic bonding of PEDOT:PSS. In: Molecular Crystals and Liquid Crystals. 2012 ; Vol. 568, No. 1. pp. 179-185.
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Effect of silica nanoparticle content on the structure and electrostatic bonding of PEDOT:PSS. / Wang, Seok Joo; Choi, Yong June; Gong, Su Cheol; Kim, Yong Hoon; Park, Hyung-Ho.

In: Molecular Crystals and Liquid Crystals, Vol. 568, No. 1, 03.12.2012, p. 179-185.

Research output: Contribution to journalArticle

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T1 - Effect of silica nanoparticle content on the structure and electrostatic bonding of PEDOT:PSS

AU - Wang, Seok Joo

AU - Choi, Yong June

AU - Gong, Su Cheol

AU - Kim, Yong Hoon

AU - Park, Hyung-Ho

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AB - Conducting poly(3,4-ethylenedioxythiophene):poly(styrene-4-sulfonate) (PEDOT:PSS) containing hydroxyl surface rich SiO 2 nanoparticles were investigated. Rearrangement and bonding of PEDOT:PSS were affected by the content of SiO 2 nanoparticles, which resulted in the modification of an electronic band structure and electrical characteristics. A slight decrease in work function and a shift of the highly occupied molecular orbital edge to the Fermi level were induced by SiO 2 nanoparticle addition. The current path was also tuned by SiO 2 nanoparticles and resistance of the composite film was diminished. SiO 2 nanoparticles affect electrostatic bonding between PEDOT:PSS and doping of PEDOT as well as increase the packing density of PEDOT:PSS.

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