Doping mechanism in poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate):TiO2 nanoparticles composite films

Wun Hao Jhang, Yow-Jon Lin, Cheng He Ruan, Day Shan Liu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The doping mechanism for composite poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) films having TiO2 nanoparticles, denoted TiO2-doped PEDOT:PSS, is investigated in this study. It is shown that TiO2 doping may lead to decreased carrier concentration, owing to a combined effect of the high activation energy and changes in the chemical structure of PEDOT:PSS. The carrier mobility in PEDOT:PSS samples exhibits unexpectedly strong temperature dependence, implying the domination of tunneling (hopping) at low (high) temperatures. An exhibition of high mobility of TiO2-doped PEDOT:PSS samples is attributed to the weak local electron-phonon coupling.

Original languageEnglish
Pages (from-to)323-326
Number of pages4
JournalThin Solid Films
Volume539
DOIs
Publication statusPublished - 2013 Jul 31

Fingerprint

Composite films
Doping (additives)
Nanoparticles
nanoparticles
composite materials
Carrier mobility
carrier mobility
Carrier concentration
Activation energy
activation energy
Temperature
temperature dependence
Electrons
Composite materials
electrons
poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)
poly(3,4-ethylene dioxythiophene)

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

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title = "Doping mechanism in poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate):TiO2 nanoparticles composite films",
abstract = "The doping mechanism for composite poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) films having TiO2 nanoparticles, denoted TiO2-doped PEDOT:PSS, is investigated in this study. It is shown that TiO2 doping may lead to decreased carrier concentration, owing to a combined effect of the high activation energy and changes in the chemical structure of PEDOT:PSS. The carrier mobility in PEDOT:PSS samples exhibits unexpectedly strong temperature dependence, implying the domination of tunneling (hopping) at low (high) temperatures. An exhibition of high mobility of TiO2-doped PEDOT:PSS samples is attributed to the weak local electron-phonon coupling.",
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year = "2013",
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Doping mechanism in poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate):TiO2 nanoparticles composite films. / Jhang, Wun Hao; Lin, Yow-Jon; Ruan, Cheng He; Liu, Day Shan.

In: Thin Solid Films, Vol. 539, 31.07.2013, p. 323-326.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Doping mechanism in poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate):TiO2 nanoparticles composite films

AU - Jhang, Wun Hao

AU - Lin, Yow-Jon

AU - Ruan, Cheng He

AU - Liu, Day Shan

PY - 2013/7/31

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AB - The doping mechanism for composite poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) films having TiO2 nanoparticles, denoted TiO2-doped PEDOT:PSS, is investigated in this study. It is shown that TiO2 doping may lead to decreased carrier concentration, owing to a combined effect of the high activation energy and changes in the chemical structure of PEDOT:PSS. The carrier mobility in PEDOT:PSS samples exhibits unexpectedly strong temperature dependence, implying the domination of tunneling (hopping) at low (high) temperatures. An exhibition of high mobility of TiO2-doped PEDOT:PSS samples is attributed to the weak local electron-phonon coupling.

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