A Process for Laser-Induced Graphene on Any Substrate

In this work, a versatile approach for the creation of laser-induced graphene (LIG) onto virtually any kind of substrate is demonstrated. The process is based on preconditioning the substrate with a layer of polyimide sealing resin and subsequently laser scribing the LIG structure onto it. By optimi...

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Bibliographic Details
Published inIEEE journal on flexible electronics Vol. 3; no. 2; pp. 65 - 71
Main Authors Neumaier, Lukas, Rauter, Lukas, Lengger, Sabine K., Khan, Sherjeel, Beduk, Tutku, Kosel, Jurgen
Format Journal Article
LanguageEnglish
Published IEEE 01.02.2024
Subjects
Additive manufacturing
Glass
Graphene
laser-induced graphene (LIG)
Resins
Sensors
strain gauge
Substrates
Temperature measurement
Temperature sensors
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ISSN2768-167X
2768-167X
DOI10.1109/JFLEX.2023.3329456

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Summary:In this work, a versatile approach for the creation of laser-induced graphene (LIG) onto virtually any kind of substrate is demonstrated. The process is based on preconditioning the substrate with a layer of polyimide sealing resin and subsequently laser scribing the LIG structure onto it. By optimizing the laser process, the resulting LIG is firmly attached to the substrate and the unutilized resin is entirely removed. Most substrates are not amenable for LIG fabrication, including glass or metals. Using this process, LIG strain, temperature, as well as humidity sensors have been fabricated on various substrates. The process features the same advantages of easy and fast patterning which LIG is well-known for and enables sensor fabrication directly on the substrate.
ISSN:2768-167X
2768-167X
DOI:10.1109/JFLEX.2023.3329456