Disruption of the Electrical Conductivity of Highly Conductive Poly(3,4-ethylenedioxythiophene): Poly(styrene sulfonate) by Hypochlorite

A. Jolt Oostra; Karel H.W. van den Bos; Paul W.M. Blom; Jasper J. Michels

doi:10.1021/jp4050836

Disruption of the Electrical Conductivity of Highly Conductive Poly(3,4-ethylenedioxythiophene): Poly(styrene sulfonate) by Hypochlorite

A. Jolt Oostra, Karel H.W. van den Bos, Paul W.M. Blom, Jasper J. Michels

Zernike Institute for Advanced Materials

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Abstract

The effect of hypochlorite treatment on the layer thickness and conductivity of a state-of-the-art high conducting poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is investigated as a function of exposure time and hypochlorite concentration. Because of overoxidation by the hypochlorite the PEDOT:PSS conductivity is decreased by 10 orders of magnitude. Comparison of thickness and conductivity as a function of time shows that a residual insulating layer remains on the substrate upon treatment. Going from a low (0.1%) hypochlorite concentration the interaction between PEDOT:PSS and hypochlorite changes from reaction- to diffusion limited. The decrease in conductivity can be interpreted in terms of the interruption of percolating conductive pathways by the reaction between PEDOT and hypochlorite.

Original language	English
Pages (from-to)	10929-10935
Number of pages	7
Journal	The Journal of Physical Chemistry B
Volume	117
Issue number	37
DOIs	https://doi.org/10.1021/jp4050836
Publication status	Published - 2013

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@article{354be944ee954d9c8b55e8f7092c8552,

title = "Disruption of the Electrical Conductivity of Highly Conductive Poly(3,4-ethylenedioxythiophene): Poly(styrene sulfonate) by Hypochlorite",

abstract = "The effect of hypochlorite treatment on the layer thickness and conductivity of a state-of-the-art high conducting poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is investigated as a function of exposure time and hypochlorite concentration. Because of overoxidation by the hypochlorite the PEDOT:PSS conductivity is decreased by 10 orders of magnitude. Comparison of thickness and conductivity as a function of time shows that a residual insulating layer remains on the substrate upon treatment. Going from a low (0.1%) hypochlorite concentration the interaction between PEDOT:PSS and hypochlorite changes from reaction- to diffusion limited. The decrease in conductivity can be interpreted in terms of the interruption of percolating conductive pathways by the reaction between PEDOT and hypochlorite.",

author = "Oostra, {A. Jolt} and Bos, {Karel H.W. van den} and Blom, {Paul W.M.} and Michels, {Jasper J.}",

note = "Relation: http://www.rug.nl/research/zernike/ Rights: University of Groningen, Zernike Institute for Advanced Materials",

year = "2013",

doi = "10.1021/jp4050836",

language = "English",

volume = "117",

pages = "10929--10935",

journal = "The Journal of Physical Chemistry. B: Materials, Surfaces, Interfaces, & Biophysical",

issn = "1520-6106",

publisher = "AMER CHEMICAL SOC",

number = "37",

}

TY - JOUR

T1 - Disruption of the Electrical Conductivity of Highly Conductive Poly(3,4-ethylenedioxythiophene)

T2 - Poly(styrene sulfonate) by Hypochlorite

AU - Oostra, A. Jolt

AU - Bos, Karel H.W. van den

AU - Blom, Paul W.M.

AU - Michels, Jasper J.

N1 - Relation: http://www.rug.nl/research/zernike/ Rights: University of Groningen, Zernike Institute for Advanced Materials

PY - 2013

Y1 - 2013

N2 - The effect of hypochlorite treatment on the layer thickness and conductivity of a state-of-the-art high conducting poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is investigated as a function of exposure time and hypochlorite concentration. Because of overoxidation by the hypochlorite the PEDOT:PSS conductivity is decreased by 10 orders of magnitude. Comparison of thickness and conductivity as a function of time shows that a residual insulating layer remains on the substrate upon treatment. Going from a low (0.1%) hypochlorite concentration the interaction between PEDOT:PSS and hypochlorite changes from reaction- to diffusion limited. The decrease in conductivity can be interpreted in terms of the interruption of percolating conductive pathways by the reaction between PEDOT and hypochlorite.

AB - The effect of hypochlorite treatment on the layer thickness and conductivity of a state-of-the-art high conducting poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is investigated as a function of exposure time and hypochlorite concentration. Because of overoxidation by the hypochlorite the PEDOT:PSS conductivity is decreased by 10 orders of magnitude. Comparison of thickness and conductivity as a function of time shows that a residual insulating layer remains on the substrate upon treatment. Going from a low (0.1%) hypochlorite concentration the interaction between PEDOT:PSS and hypochlorite changes from reaction- to diffusion limited. The decrease in conductivity can be interpreted in terms of the interruption of percolating conductive pathways by the reaction between PEDOT and hypochlorite.

U2 - 10.1021/jp4050836

DO - 10.1021/jp4050836

M3 - Article

VL - 117

SP - 10929

EP - 10935

JO - The Journal of Physical Chemistry. B: Materials, Surfaces, Interfaces, & Biophysical

JF - The Journal of Physical Chemistry. B: Materials, Surfaces, Interfaces, & Biophysical

SN - 1520-6106

IS - 37

ER -