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CNT-Based Inkjet-Printed RF Gas Sensor: Modification of Substrate Properties during the Fabrication Process

Abstract : This paper presents the feasibility of a fully inkjet-printed, microwave flexible gas sensor based on a resonant electromagnetic transducer in microstrip technology and the impact of the printing process that affects the characteristics of the gas sensor. The sensor is fabricated using silver ink and multi-wall carbon nanotubes (MWCNTs) embedded in poly (3,4-ethylenedioxythiophene) polystyrene (PEDOT: PSS-MWCNTs) as sensitive material for Volatile Organic Compounds (VOCs) detection. Particular attention is paid to the characterization of the printed materials and the paper substrate. The manufacturing process results in a change in relative permittivity of the paper substrate by nearly 20%. Electrical characterization, made in the presence of gas, validates our theoretical approach and the radiofrequency (RF) gas sensor proof of concept.
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https://hal-unilim.archives-ouvertes.fr/hal-02103220
Contributeur : Olivier Tantot <>
Soumis le : mardi 8 décembre 2020 - 18:49:31
Dernière modification le : mercredi 16 décembre 2020 - 04:08:43

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sensors-19-01768.pdf
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Julien George, Aymen Abdelghani, Prince Bahoumina, Olivier Tantot, Dominique Baillargeat, et al.. CNT-Based Inkjet-Printed RF Gas Sensor: Modification of Substrate Properties during the Fabrication Process. Sensors, MDPI, 2019, 19 (8), pp.1768. ⟨10.3390/s19081768⟩. ⟨hal-02103220⟩

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