Effect of Thickness on the Electrical Properties of PEDOT:PSS/Tween 80 Films

Joseph L. Carter; Catherine A. Kelly; Jean. E.  Marshall; Mike J. Jenkins

doi:10.1038/s41428-023-00854-w

Effect of Thickness on the Electrical Properties of PEDOT:PSS/Tween 80 Films

Joseph L. Carter, Catherine A. Kelly, Jean. E. Marshall, Mike J. Jenkins^*

^*Corresponding author for this work

Metallurgy and Materials

Research output: Contribution to journal › Article › peer-review

Abstract

The lower material and manufacturing costs of conductive polymers, particularly PEDOT:PSS, compared to indium tin oxide have led to significant research into their use in optoelectric devices. In this study, improvements of the electrical properties of PEDOT:PSS and PEDOT:PSS/Tween 80 via the production of multilayered films were investigated. A single layer of pristine PEDOT:PSS was found to give a sheet resistance of 1639 Ω□^–1. The application of an additional three layers reduced this value to 29 Ω□^-1, corresponding to an increase in conductivity from 2.6 to 18.3 Scm^–1. A similar trend was also found with formulations containing Tween 80. X-ray diffraction and Raman spectroscopy showed that the additional layers increased the crystalline order and induced a slight benzoid to quinoid shift. Surface profiling showed progressive increases in surface roughness with each additional layer of pristine PEDOT:PSS; however, this was mitigated by the presence of Tween 80 in the formulations.

Original language	English
Number of pages	8
Journal	Polymer Journal
Early online date	6 Dec 2023
DOIs	https://doi.org/10.1038/s41428-023-00854-w
Publication status	E-pub ahead of print - 6 Dec 2023

Bibliographical note

Funding:
This work was supported by the EPSRC and UKRI (Grant number: EP/N509590/1).

Keywords

Materials science
Polymer chemistry

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Cite this

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title = "Effect of Thickness on the Electrical Properties of PEDOT:PSS/Tween 80 Films",

abstract = "The lower material and manufacturing costs of conductive polymers, particularly PEDOT:PSS, compared to indium tin oxide have led to significant research into their use in optoelectric devices. In this study, improvements of the electrical properties of PEDOT:PSS and PEDOT:PSS/Tween 80 via the production of multilayered films were investigated. A single layer of pristine PEDOT:PSS was found to give a sheet resistance of 1639 Ω□–1. The application of an additional three layers reduced this value to 29 Ω□-1, corresponding to an increase in conductivity from 2.6 to 18.3 Scm–1. A similar trend was also found with formulations containing Tween 80. X-ray diffraction and Raman spectroscopy showed that the additional layers increased the crystalline order and induced a slight benzoid to quinoid shift. Surface profiling showed progressive increases in surface roughness with each additional layer of pristine PEDOT:PSS; however, this was mitigated by the presence of Tween 80 in the formulations.",

keywords = "Materials science, Polymer chemistry",

author = "Carter, {Joseph L.} and Kelly, {Catherine A.} and Marshall, {Jean. E.} and Jenkins, {Mike J.}",

note = "Funding: This work was supported by the EPSRC and UKRI (Grant number: EP/N509590/1).",

year = "2023",

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doi = "10.1038/s41428-023-00854-w",

language = "English",

journal = "Polymer Journal",

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T1 - Effect of Thickness on the Electrical Properties of PEDOT:PSS/Tween 80 Films

AU - Carter, Joseph L.

AU - Kelly, Catherine A.

AU - Marshall, Jean. E.

AU - Jenkins, Mike J.

N1 - Funding: This work was supported by the EPSRC and UKRI (Grant number: EP/N509590/1).

PY - 2023/12/6

Y1 - 2023/12/6

N2 - The lower material and manufacturing costs of conductive polymers, particularly PEDOT:PSS, compared to indium tin oxide have led to significant research into their use in optoelectric devices. In this study, improvements of the electrical properties of PEDOT:PSS and PEDOT:PSS/Tween 80 via the production of multilayered films were investigated. A single layer of pristine PEDOT:PSS was found to give a sheet resistance of 1639 Ω□–1. The application of an additional three layers reduced this value to 29 Ω□-1, corresponding to an increase in conductivity from 2.6 to 18.3 Scm–1. A similar trend was also found with formulations containing Tween 80. X-ray diffraction and Raman spectroscopy showed that the additional layers increased the crystalline order and induced a slight benzoid to quinoid shift. Surface profiling showed progressive increases in surface roughness with each additional layer of pristine PEDOT:PSS; however, this was mitigated by the presence of Tween 80 in the formulations.

AB - The lower material and manufacturing costs of conductive polymers, particularly PEDOT:PSS, compared to indium tin oxide have led to significant research into their use in optoelectric devices. In this study, improvements of the electrical properties of PEDOT:PSS and PEDOT:PSS/Tween 80 via the production of multilayered films were investigated. A single layer of pristine PEDOT:PSS was found to give a sheet resistance of 1639 Ω□–1. The application of an additional three layers reduced this value to 29 Ω□-1, corresponding to an increase in conductivity from 2.6 to 18.3 Scm–1. A similar trend was also found with formulations containing Tween 80. X-ray diffraction and Raman spectroscopy showed that the additional layers increased the crystalline order and induced a slight benzoid to quinoid shift. Surface profiling showed progressive increases in surface roughness with each additional layer of pristine PEDOT:PSS; however, this was mitigated by the presence of Tween 80 in the formulations.

KW - Materials science

KW - Polymer chemistry

U2 - 10.1038/s41428-023-00854-w

DO - 10.1038/s41428-023-00854-w

M3 - Article

SN - 0032-3896

JO - Polymer Journal

JF - Polymer Journal

ER -

Effect of Thickness on the Electrical Properties of PEDOT:PSS/Tween 80 Films

Abstract

Bibliographical note

Keywords

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