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Capteur de gaz hyperfréquence à base de nanotubes de carbone, imprimé par technologie jet d’encre

Aymen Abdelghani 1 
1 XLIM-SRF - Systèmes RF
XLIM - XLIM : SRF
Abstract : In recent years, the development of gas sensors has grown rapidly for industrial, military and environmental applications to ensure safety and protection against harmful and toxic gases. These applications require sensitive, selective, low power and low cost sensors. The thesis work presented in this manuscript fits into this context. Its objective is the realization of a microwave sensor based on carbon nanotubes and manufactured by inkjet technology. The operating principle of the sensor is based on the frequency characterization of an RF resonator, one element of which is sensitive, thanks to the carbon nanotubes, to the presence of a surrounding gas. The manuscript addresses all the steps necessary for the realization of the sensor, namely: the design of the test devices, based on a theoretical study of their behavior, the characterization of the materials used, the fabrication on a flexible substrate by inkjet printing technique and finally the characterization of the gas sensor in terms of frequency behavior and sensitivity in the presence of gas.
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Aymen Abdelghani. Capteur de gaz hyperfréquence à base de nanotubes de carbone, imprimé par technologie jet d’encre. Electronique. Université de Limoges, 2018. Français. ⟨NNT : 2018LIMO0089⟩. ⟨tel-01980602⟩

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