Design and fabrication of effective gradient temperature sensor array based on bilayer SnO2/Pt for gas classification

Duy, Nguyễn Văn; Thai, Nguyen Xuan; Ngoc, Trinh Minh; Le, Dang Thi Thanh; Hung, Chu Manh; Nguyen, Hugo; Tonezzer, Matteo; Hiếu, Nguyễn Văn; Hòa, Nguyễn Đức

doi:10.1016/j.snb.2021.130979

Cited by 18 publications

(15 citation statements)

References 52 publications

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“…For the making of these sensor arrays mostly metal oxides are used. Metal oxides are well known for their selectivity of specifically targeted gases as shown in figure 4 below (Van Duy et al, 2022). These metal oxides are well suited for making the sensor arrays but there is one problem using these metal oxides that they require an elevated temperature for sensing the gas.…”

Section: Gas Sensor Arraymentioning

confidence: 99%

“…Comparison of working of brain and smart gas sensor (Van Duy et al, 2022) being done and heterostructures are prepared for gas sensing. For increasing sensitivity and selectivity of the gas, the sensors are using sensing layer nanoparticles vanas they increase the surface area of the sensing layer.…”

Section: Figurementioning

confidence: 99%

“…Functionalized Semiconducting CNT arrays can be used for the detection and discrimination of hazardous explosive gases (Doshi &Fahrenthold, 2022). A gas sensor array of five sensors of bilayer SnO2/Pt film was fabricated for the improved sensor array response, they used an effective microheater design (Van Duy et al, 2022) . This designed Sensor array could sense different gases such as ethanol, methanol, isopropanol, acetone, ammonia, and hydrogen.…”

Section: : Algorithms For Discriminationmentioning

confidence: 99%

“…(Alizadeh &Soltani, 2016). (Van Duy et al, 2022) designed and fabricated and effective sensor that could detect multiple gases at a time. The multiple gas detection requires elevation of the temperature for proper detection for this purpose microheaters were used.…”

Section: : Algorithms For Discriminationmentioning

confidence: 99%

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Review on Discrimination of Hazardous Gases by Smart Sensing Technology

Bandewad

Datta

Gawali

et al. 2023

AIA

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Real-time detection of hazardous gases in the ambient and indoors has become the prime motive for curbing the problem of air pollution. Keeping the concentration of hazardous gases in control is the main task before human society so as to keep environmental balance. Smart sensors are attracting researchers to focus on fabricating devices that could detect and predict the presence of gas in real-time, give accurate results about the gas concentration, detection of a target gas from the mixture of gases. This smart gas sensor system can have applications in the field of military, space, underwater, indoor, outdoors, factories, vehicles, and wearable smart devices. This study reviews recent advances in smart sensor technology with respect to the material structure, sensing technique, and discrimination algorithm. Focus is given on reducing the power consumption and area of a sensor circuitry with the help of different techniques.

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Section: Gas Sensor Arraymentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: : Algorithms For Discriminationmentioning

confidence: 99%

Section: : Algorithms For Discriminationmentioning

confidence: 99%

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Review on Discrimination of Hazardous Gases by Smart Sensing Technology

Bandewad

Datta

Gawali

et al. 2023

AIA

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“…The non-contact type sensors, which are based on thermal emission of electromagnetic radiation, are used mainly in research and development fields. The contact type sensor includes thermocouples, thermistors, and RTDs which are based on the Seebeck effect, temperature-sensitive electrical resistance, and positive/negative temperature coefficient of electrical resistance, respectively, [ 6 , 7 , 8 , 9 , 10 , 11 ]. At present, thermocouples and thermistors are most widely used in industry.…”

Section: Introductionmentioning

confidence: 99%

High Performance of Metallic Thin Films for Resistance Temperature Devices with Antimicrobial Properties

Souza

Corrêa

Bohn

et al. 2022

Sensors

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Titanium-copper alloy films with stoichiometry given by Ti1−xCux were produced by magnetron co-sputtering technique and analyzed in order to explore the suitability of the films to be applied as resistive temperature sensors with antimicrobial properties. For that, the copper (Cu) amount in the films was varied by applying different DC currents to the source during the deposition in order to change the Cu concentration. As a result, the samples showed excellent thermoresistivity linearity and stability for temperatures in the range between room temperature to 110 °C. The sample concentration of Ti0.70Cu0.30 has better characteristics to act as RTD, especially the αTCR of 1990 ×10−6°C−1. The antimicrobial properties of the Ti1−xCux films were analyzed by exposing the films to the bacterias S. aureus and E. coli, and comparing them with bare Ti and Cu films that underwent the same protocol. The Ti1−xCux thin films showed bactericidal effects, by log10 reduction for both bacteria, irrespective of the Cu concentrations. As a test of concept, the selected sample was subjected to 160 h reacting to variations in ambient temperature, presenting results similar to a commercial temperature sensor. Therefore, these Ti1−xCux thin films become excellent antimicrobial candidates to act as temperature sensors in advanced coating systems.

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