VOCs monitoring using microwave capacitive resonator and conductive polymer – MWCNTs nanocomposites for environmental applications

Prince Bahoumina (1) , Hamida Hallil (1) , Jean-Luc Lachaud (1) , Aymen Abdelghani (2) , Kamel Frigui (2) , Stéphane Bila (2) , Dominique Baillargeat (2) , Qing Zhang (3, 4) , Philippe Coquet (4, 5) , Carlos Paragua (5) , Emmanuelle Pichonat (5) , Henri Happy (5) , Dominique Rebière (1) , Corinne Dejous (1)

1 IMS - Laboratoire de l'intégration, du matériau au système
2 XLIM-SRF - Systèmes RF
3 NTU - Nanayang Technological University
4 CINTRA - CNRS International - NTU - Thales Research Alliance
5 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520

This paper presents a chemical microwave flexible sensor based on a resonant electromagnetic transducer in micro-strip technology with poly (3,4-ethylenedioxythiophene) polystyrene sulfonate – multi wall carbon nanotubes (PEDOT:PSS-MWCNTs) as sensitive material for Volatile Organic Compounds (VOCs) detection. The results show a high sensitivity to ethanol and toluene vapors on the S parameters of a passive resonator over a large frequency range. It is equal to -1.59 kHz/ppm and -1.45 kHz/ppm for ethanol and toluene vapors respectively. This kind of sensor can be integrated into real-time multi-sensing platform adaptable for the Internet of Things (IoT).

Domaines: Micro et nanotechnologies/Microélectronique; Instrumentations et Détecteurs [physics.ins-det]

Prince Bahoumina, Hamida Hallil, Jean-Luc Lachaud, Aymen Abdelghani, Kamel Frigui, et al.. VOCs monitoring using microwave capacitive resonator and conductive polymer – MWCNTs nanocomposites for environmental applications. IEEE Nanotechnology Materials and Devices Conference (NMDC), Oct 2017, Singapore, Singapore. ⟨hal-01719025⟩