Love wave gas sensor based on DWNTs sensitive material
H. Hallil (IMS), Q. Zhang (NTU, UMI CINTRA), E. Flahaut (CIRIMAT), J, Lachaud (IMS), P. Coquet (UMI CINTRA, IEMN), C. Dejous (IMS), D. Rebi\`ere, (IMS)
TL;DR
This paper presents a novel Love wave gas sensor utilizing inkjet-printed DWNTs for real-time detection of VOCs and humidity, demonstrating significant frequency shifts upon vapor adsorption at ambient conditions.
Contribution
It introduces a new Love wave sensor platform with inkjet-printed DWNTs as a sensitive material for detecting VOCs and humidity.
Findings
Frequency shifts of 1.97 kHz for 120 ppm ethanol vapor
Frequency shifts of 2.93 kHz for 6.22% RH humidity
Real-time detection at ambient conditions
Abstract
This work focuses on the application related to the detection of low moisture and environmental pollutants. A novel gas sensor with inkjet printed Double Walled Carbon Nano Tubes (DWNTs) on a Love wave sensor platform was developed for Volatile Organic Compounds (VOCs) and humidity detection application. The experiments were conducted in real-time at ambient conditions. Results demonstrate the adsorption of vapor compounds on DWNTs sensitive material and leads for example to frequency shifts of 1.97 kHz and 2.93 kHz with 120 ppm of ethanol vapor and 6.22 % RH, respectively.
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Taxonomy
TopicsMechanical and Optical Resonators · Gas Sensing Nanomaterials and Sensors · Carbon Nanotubes in Composites