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

Autor: George J; University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France. julien.george@xlim.fr., Abdelghani A; University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France. aymen.abdelghani@xlim.fr., Bahoumina P; University of Bordeaux, Bordeaux INP/CNRS, IMS UMR 5218, F-33400 Talence, France. prince.bahoumina@gmail.com., Tantot O; University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France. olivier.tantot@xlim.fr., Baillargeat D; University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France. dominique.baillargeat@xlim.fr., Frigui K; University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France. kamel.frigui@xlim.fr., Bila S; University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France. stephane.bila@xlim.fr., Hallil H; University of Bordeaux, Bordeaux INP/CNRS, IMS UMR 5218, F-33400 Talence, France. hamida.hallil-abbas@u-bordeaux.fr., Dejous C; University of Bordeaux, Bordeaux INP/CNRS, IMS UMR 5218, F-33400 Talence, France. corinne.dejous@ims-bordeaux.fr.
Jazyk: angličtina
Zdroj: Sensors (Basel, Switzerland) [Sensors (Basel)] 2019 Apr 13; Vol. 19 (8). Date of Electronic Publication: 2019 Apr 13.
DOI: 10.3390/s19081768
Abstrakt: 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.
Databáze: MEDLINE
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