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Improved Manufacturing Performance of Screen Printed Carbon Electrodes through Material Formulation

Eifion Jewell Orcid Logo, Bruce Philip, Peter Greenwood

Biosensors, Volume: 6, Issue: 3, Start page: 30

Swansea University Author: Eifion Jewell Orcid Logo

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DOI (Published version): 10.3390/bios6030030

Abstract

Printed carbon graphite materials are the primary common component in the majorityof screen printed sensors. Screen printing allows a scalable manufacturing solution, acceleratingthe means by which novel sensing materials can make the transition from laboratory material tocommercial product. A commo...

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Published in: Biosensors
ISSN: 2079-6374
Published: 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa29015
Abstract: Printed carbon graphite materials are the primary common component in the majorityof screen printed sensors. Screen printing allows a scalable manufacturing solution, acceleratingthe means by which novel sensing materials can make the transition from laboratory material tocommercial product. A common bottleneck in any thick film printing process is the controlled dryingof the carbon paste material. A study has been undertaken which examines the interaction betweenmaterial solvent, printed film conductivity and process consistency. The study illustrates that itis possible to reduce the solvent boiling point to significantly increase process productivity whilemaintaining process consistency. The lower boiling point solvent also has a beneficial effect on theconductivity of the film, reducing the sheet resistance. It is proposed that this is a result of greaterfilm stressing increasing charge percolation through greater inter particle contact. Simulations ofmaterial performance and drying illustrate that a multi layered printing provides a more time efficientmanufacturing method. The findings have implications for the volume manufacturing of the carbonsensor electrodes but also have implications for other applications where conductive carbon is used,such as electrical circuits and photovoltaic devices.
Item Description: This is an open access article distributed under the Creative Commons Attribution License (CC BY 4.0).
Keywords: screen printing; carbon electrodes; manufacturing
College: Faculty of Science and Engineering
Issue: 3
Start Page: 30

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