Microwave gas sensing with a microstrip interDigital capacitor: Detection of NH3 with TiO2 nanoparticles

Bailly, Guillaume; Harrabi, Amal; Rossignol, Jérôme; Stuerga, D.; Pribetich, P.

doi:10.1016/j.snb.2016.06.048

Cited by 83 publications

(51 citation statements)

References 30 publications

(49 reference statements)

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“…5). As expected, the presence of material, whose relative permittivity is assessed around 6.4 (value obtained in previous works [21,22]), involves slight decrease of resonance frequencies. The good agreement observed between simulations (dotted lines) and measurements (plain lines) validates the model at conduction level (i.e.…”

Section: S-parameters In Presence Of Tio 2 and Methodologysupporting

confidence: 83%

Microwave microscopy applied to EMC problem: Visualisation of electromagnetic field in the vicinity of electronic circuit and effect of nanomaterial coating

Rossignol¹,

Stuerga²,

Bailly³

et al. 2017

AEM

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This proposal is devoted to a collaborative approach dealing with microwave microscopy experiments. The application is dedicated to an electromagnetic field cartography above circuits and the influence of nanometric material layer deposition on the circuits. The first application is associated to a microstrip ring resonator. The results match with the simulated fields. The second application is focused on the effects of a dielectric layer deposited on the circuit and its impact in terms of electromagnetic propagation.

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Section: S-parameters In Presence Of Tio 2 and Methodologysupporting

confidence: 83%

Microwave microscopy applied to EMC problem: Visualisation of electromagnetic field in the vicinity of electronic circuit and effect of nanomaterial coating

Rossignol¹,

Stuerga²,

Bailly³

et al. 2017

AEM

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show abstract

“…To analyze the response and recovery time, each parameter was measured at a fixed frequency with the evolution of time. The time taken by a sensor to achieve 90% of the total parameter change is defined as response time in the case of adsorption or the recovery time in the case of desorption as shown in Figure 12a (Zheng et al, 2015;Bailly et al, 2016b). Combining both the real and imaginary parts of a parameter is considered as a powerful tool to assess the overall performance of a sensor (Rossignol et al, 2013).…”

Section: Signal Analysismentioning

confidence: 99%

Gas Sensing by Microwave Transduction: Review of Progress and Challenges

Zheng

Hua

et al. 2019

Front. Mater.

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Microwave transduction is a novel research field in gas sensing owing to its simplicity, low cost, passive, and non-contact operations that indicate a huge potential in applications for gas sensing. At present, the study of microwave gas sensors is limited to testing the macroscopic performance of materials. Although the permittivity change of materials is the reason for microwave transduction, the knowledge of the fundamental mechanism is an urgent requirement for boosting the development of microwave gas sensors. In this review, we summarized the presented progresses of microwave gas sensors, including the performance of the different materials and propagative structures, as well as their sensitive signal. We have attempted to explain the sensitive mechanism of these materials, discuss the function of the propagative structure, and analyze the sensitive signal extracted from the parameters of electromagnetic waves. Finally, the challenges in the study of sensitive materials and propagative structures used in microwave gas sensors are analyzed. It is clear from the published literatures that microwave transduction provide a new route for gas detection, and it is expected that commercial manifestation will occur. The future research on microwave gas sensors will continue to exploit their sensitive materials and propagative structure for different applications. The understanding of the microscopic polarization interactions with gases will assist in and guide the fabrication of high-performance microwave gas sensors in the future.

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“…An alternative measuring approach, which has been increasingly investigated in recent years, is based on the influence of sensitive materials on the propagation behavior of electromagnetic waves in the microwave frequency range around strip lines (Bailly et al, 2016a;Chahadih et al, 2015;Zarifi et al, 2015). Similar to resistive sensors, the sensitive materials can be applied in the form of layers on top of the strip lines.…”

Section: Introductionmentioning

confidence: 99%

“…For this purpose, a layer of cobalt phthalocyanine was deposited on a resonance structure (Rossignol et al, 2013). Since the sensor designs described in the literature often do not use high-temperatureresistant materials, this sensor principle has been used up to now mainly for gas detection at room temperature (Bailly et al, 2016b;Rydosz et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Novel radio-frequency-based gas sensor with integrated heater

Walter¹,

Bogner²,

Hagen³

et al. 2019

J. Sens. Sens. Syst.

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Abstract. Up to now, sensor applications have rarely used materials whose dielectric properties are a function of the gas concentration. A sensor principle, by which this material effect can be utilized, is based planar radio-frequency sensors. For the first time, such a sensor was equipped with an integrated heater and successfully operated at temperatures up to 700 ∘C. This makes it possible to apply materials that show gas-dependent changes in the dielectric properties only at higher temperatures. By coating the planar resonance structure with a zeolite, ammonia could be detected. The amount of ammonia stored in the sensitive layer can thereby be determined, since the resonant frequency of the sensor shifts with its ammonia loading. Desorption measurements showed a dependence of the storage behavior of the ammonia in the gas-sensitive layer on the operating temperature of the sensor. Thus, it was possible that by operating the sensor at 300 ∘C, it only shows a gas-concentration-dependent signal. At lower operating temperatures, on the other hand, the sensor could possibly be used for dosimetric determination of very low ammonia concentrations.

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Microwave gas sensing with a microstrip interDigital capacitor: Detection of NH3 with TiO2 nanoparticles

Cited by 83 publications

References 30 publications

Microwave microscopy applied to EMC problem: Visualisation of electromagnetic field in the vicinity of electronic circuit and effect of nanomaterial coating

Microwave microscopy applied to EMC problem: Visualisation of electromagnetic field in the vicinity of electronic circuit and effect of nanomaterial coating

Gas Sensing by Microwave Transduction: Review of Progress and Challenges

Novel radio-frequency-based gas sensor with integrated heater

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