Optimization of a Handwriting Method by an Automated Ink Pen for Cost-Effective and Sustainable Sensors
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AuthorLoghin, Florin; Fernández Salmerón, José; Lugli, Paolo; Becherer, Markus; Falco, Aniello; Rivadeneyra Torres, Almudena
Additive manufacturingBall penFlexible substratePrinted electronicsSilver nanoparticles
Loghin, F.C.; Salmerón, J.F.; Lugli, P.; Becherer, M.; Falco, A.; Rivadeneyra, A. Optimization of a Handwriting Method by an Automated Ink Pen for Cost-Effective and Sustainable Sensors. Chemosensors 2021, 9, 264. https:// doi.org/10.3390/chemosensors9090264
SponsorshipTUM Graduate School and by the European Commission through the fellowship H2020-MSCA-IF-2017-794885-SELFSENS
In this work, we present a do-it-yourself (DIY) approach for the environmental-friendly fabrication of printed electronic devices and sensors. The setup consists only of an automated handwriting robot and pens filled with silver conductive inks. Here, we thoroughly studied the fabrication technique and different optimized parameters. The best-achieved results were 300 mΩ/sq as sheet resistance with a printing resolution of 200 µm. The optimized parameters were used to manufacture fully functional electronics devices: a capacitive sensor and a RFID tag, essential for the remote reading of the measurements. This technique for printed electronics represents an alternative for fast-prototyping and ultra-low-cost fabrication because of both the cheap equipment required and the minimal waste of materials, which is especially interesting for the development of cost-effective sensors.