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Article

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

1
University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France
2
University of Bordeaux, Bordeaux INP/CNRS, IMS UMR 5218, F-33400 Talence, France
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(8), 1768; https://doi.org/10.3390/s19081768
Received: 25 February 2019 / Revised: 31 March 2019 / Accepted: 10 April 2019 / Published: 13 April 2019
(This article belongs to the Special Issue Passive Electromagnetic Sensors for Autonomous Wireless Networks)
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. View Full-Text
Keywords: dielectric characterization; inkjet printing; heating influence; gas sensor; RF structure; PEDOT: PSS-MWCNT; Flexible substrate dielectric characterization; inkjet printing; heating influence; gas sensor; RF structure; PEDOT: PSS-MWCNT; Flexible substrate
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MDPI and ACS Style

George, J.; Abdelghani, A.; Bahoumina, P.; Tantot, O.; Baillargeat, D.; Frigui, K.; Bila, S.; Hallil, H.; Dejous, C. CNT-Based Inkjet-Printed RF Gas Sensor: Modification of Substrate Properties during the Fabrication Process. Sensors 2019, 19, 1768. https://doi.org/10.3390/s19081768

AMA Style

George J, Abdelghani A, Bahoumina P, Tantot O, Baillargeat D, Frigui K, Bila S, Hallil H, Dejous C. CNT-Based Inkjet-Printed RF Gas Sensor: Modification of Substrate Properties during the Fabrication Process. Sensors. 2019; 19(8):1768. https://doi.org/10.3390/s19081768

Chicago/Turabian Style

George, Julien, Aymen Abdelghani, Prince Bahoumina, Olivier Tantot, Dominique Baillargeat, Kamel Frigui, Stéphane Bila, Hamida Hallil, and Corinne Dejous. 2019. "CNT-Based Inkjet-Printed RF Gas Sensor: Modification of Substrate Properties during the Fabrication Process" Sensors 19, no. 8: 1768. https://doi.org/10.3390/s19081768

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