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The influence of carbon morphologies and concentrations on the rheology and electrical performance of screen-printed carbon pastes

Sarah-Jane Potts Orcid Logo, Tatyana Korochkina, Alexander Holder, Eifion Jewell Orcid Logo, Christopher Phillips Orcid Logo, Tim Claypole Orcid Logo

Journal of Materials Science, Volume: 57, Issue: 4, Pages: 2650 - 2666

Swansea University Authors: Sarah-Jane Potts Orcid Logo, Tatyana Korochkina, Alexander Holder, Eifion Jewell Orcid Logo, Christopher Phillips Orcid Logo, Tim Claypole Orcid Logo

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DOI (Published version): 10.1007/s10853-021-06724-1

Abstract

Screen-printing inks containing various morphologies of carbon are used in the production of a variety of printed electronics applications. Particle morphology influences the rheology of the ink which will affect the deposition and therefore the electrical performance of a printed component. To asse...

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Published in: Journal of Materials Science
ISSN: 0022-2461 1573-4803
Published: Springer Science and Business Media LLC 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa59141
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Particle morphology influences the rheology of the ink which will affect the deposition and therefore the electrical performance of a printed component. To assess the effect of both carbon morphology and concentration on print topography and conductivity, screen printable carbon inks with differing loading concentrations of graphite, carbon black and graphite nanoplatelets (GNPs) were formulated, printed and characterised, with rheological and novel print visualisation techniques used to elucidate the mechanisms responsible. Carbon morphology had significant effects on the packing of particles. The smaller carbon black particles had more interparticle interactions leading to better conductivities, but also higher ink viscosities and elasticities than the other morphologies. Increases in carbon concentration led to increases in film thickness and roughness for all morphologies. However, beyond a critical point further increases in carbon concentration led to agglomerations of particles, mesh marking and increases in surface roughness, preventing further improvements in the print conductivity. The optimal loading concentrations were identifiable using a custom-made screen-printing apparatus used with high speed imaging for all morphologies. Notable increases in filamentation during ink separation were found to occur with further increases in carbon concentration beyond the optimum. 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spelling 2022-02-07T16:49:34.9774083 v2 59141 2022-01-10 The influence of carbon morphologies and concentrations on the rheology and electrical performance of screen-printed carbon pastes 8c536622ba65fa1e04912d0e2ede88f7 0000-0003-0208-2364 Sarah-Jane Potts Sarah-Jane Potts true false 3a30da49bb005c9032ea3ef581d5e7ea Tatyana Korochkina Tatyana Korochkina true false cdc0d0fcecfcd72ca00342951c94f0ae Alexander Holder Alexander Holder true false 13dc152c178d51abfe0634445b0acf07 0000-0002-6894-2251 Eifion Jewell Eifion Jewell true false cc734f776f10b3fb9b43816c9f617bb5 0000-0001-8011-710X Christopher Phillips Christopher Phillips true false 7735385522f1e68a8775b4f709e91d55 0000-0003-1393-9634 Tim Claypole Tim Claypole true false 2022-01-10 MTLS Screen-printing inks containing various morphologies of carbon are used in the production of a variety of printed electronics applications. Particle morphology influences the rheology of the ink which will affect the deposition and therefore the electrical performance of a printed component. To assess the effect of both carbon morphology and concentration on print topography and conductivity, screen printable carbon inks with differing loading concentrations of graphite, carbon black and graphite nanoplatelets (GNPs) were formulated, printed and characterised, with rheological and novel print visualisation techniques used to elucidate the mechanisms responsible. Carbon morphology had significant effects on the packing of particles. The smaller carbon black particles had more interparticle interactions leading to better conductivities, but also higher ink viscosities and elasticities than the other morphologies. Increases in carbon concentration led to increases in film thickness and roughness for all morphologies. However, beyond a critical point further increases in carbon concentration led to agglomerations of particles, mesh marking and increases in surface roughness, preventing further improvements in the print conductivity. The optimal loading concentrations were identifiable using a custom-made screen-printing apparatus used with high speed imaging for all morphologies. Notable increases in filamentation during ink separation were found to occur with further increases in carbon concentration beyond the optimum. As this point could not be identified using shear rheology alone, this method combined with shear rheology could be used to optimise the carbon concentration of screen-printing inks, preventing the use of excess material which has no benefit on print quality and conductivity. Journal Article Journal of Materials Science 57 4 2650 2666 Springer Science and Business Media LLC 0022-2461 1573-4803 3 1 2022 2022-01-03 10.1007/s10853-021-06724-1 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University SU Library paid the OA fee (TA Institutional Deal) European Social Fund via the Welsh Government, the Engineering and Physical Sciences Research Council (Grant reference: EP/L015099/1) and icmPrint Ltd. 2022-02-07T16:49:34.9774083 2022-01-10T16:11:23.1572064 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Sarah-Jane Potts 0000-0003-0208-2364 1 Tatyana Korochkina 2 Alexander Holder 3 Eifion Jewell 0000-0002-6894-2251 4 Christopher Phillips 0000-0001-8011-710X 5 Tim Claypole 0000-0003-1393-9634 6 59141__22318__6ecefefd70374f7ca7e6ad93f69074ba.pdf 59141.pdf 2022-02-07T16:46:12.6695725 Output 4885056 application/pdf Version of Record true Copyright: The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License true eng http://creativecommons.org/licenses/by/4.0/
title The influence of carbon morphologies and concentrations on the rheology and electrical performance of screen-printed carbon pastes
spellingShingle The influence of carbon morphologies and concentrations on the rheology and electrical performance of screen-printed carbon pastes
Sarah-Jane Potts
Tatyana Korochkina
Alexander Holder
Eifion Jewell
Christopher Phillips
Tim Claypole
title_short The influence of carbon morphologies and concentrations on the rheology and electrical performance of screen-printed carbon pastes
title_full The influence of carbon morphologies and concentrations on the rheology and electrical performance of screen-printed carbon pastes
title_fullStr The influence of carbon morphologies and concentrations on the rheology and electrical performance of screen-printed carbon pastes
title_full_unstemmed The influence of carbon morphologies and concentrations on the rheology and electrical performance of screen-printed carbon pastes
title_sort The influence of carbon morphologies and concentrations on the rheology and electrical performance of screen-printed carbon pastes
author_id_str_mv 8c536622ba65fa1e04912d0e2ede88f7
3a30da49bb005c9032ea3ef581d5e7ea
cdc0d0fcecfcd72ca00342951c94f0ae
13dc152c178d51abfe0634445b0acf07
cc734f776f10b3fb9b43816c9f617bb5
7735385522f1e68a8775b4f709e91d55
author_id_fullname_str_mv 8c536622ba65fa1e04912d0e2ede88f7_***_Sarah-Jane Potts
3a30da49bb005c9032ea3ef581d5e7ea_***_Tatyana Korochkina
cdc0d0fcecfcd72ca00342951c94f0ae_***_Alexander Holder
13dc152c178d51abfe0634445b0acf07_***_Eifion Jewell
cc734f776f10b3fb9b43816c9f617bb5_***_Christopher Phillips
7735385522f1e68a8775b4f709e91d55_***_Tim Claypole
author Sarah-Jane Potts
Tatyana Korochkina
Alexander Holder
Eifion Jewell
Christopher Phillips
Tim Claypole
author2 Sarah-Jane Potts
Tatyana Korochkina
Alexander Holder
Eifion Jewell
Christopher Phillips
Tim Claypole
format Journal article
container_title Journal of Materials Science
container_volume 57
container_issue 4
container_start_page 2650
publishDate 2022
institution Swansea University
issn 0022-2461
1573-4803
doi_str_mv 10.1007/s10853-021-06724-1
publisher Springer Science and Business Media LLC
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
active_str 0
description Screen-printing inks containing various morphologies of carbon are used in the production of a variety of printed electronics applications. Particle morphology influences the rheology of the ink which will affect the deposition and therefore the electrical performance of a printed component. To assess the effect of both carbon morphology and concentration on print topography and conductivity, screen printable carbon inks with differing loading concentrations of graphite, carbon black and graphite nanoplatelets (GNPs) were formulated, printed and characterised, with rheological and novel print visualisation techniques used to elucidate the mechanisms responsible. Carbon morphology had significant effects on the packing of particles. The smaller carbon black particles had more interparticle interactions leading to better conductivities, but also higher ink viscosities and elasticities than the other morphologies. Increases in carbon concentration led to increases in film thickness and roughness for all morphologies. However, beyond a critical point further increases in carbon concentration led to agglomerations of particles, mesh marking and increases in surface roughness, preventing further improvements in the print conductivity. The optimal loading concentrations were identifiable using a custom-made screen-printing apparatus used with high speed imaging for all morphologies. Notable increases in filamentation during ink separation were found to occur with further increases in carbon concentration beyond the optimum. As this point could not be identified using shear rheology alone, this method combined with shear rheology could be used to optimise the carbon concentration of screen-printing inks, preventing the use of excess material which has no benefit on print quality and conductivity.
published_date 2022-01-03T04:16:13Z
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